Periodically

Definition: Periodically

Periodically

Adverb

1. In a sporadic manner; "he only works sporadically".

Date "periodically" was first used in popular English literature: sometime before 1550. (references)

Synonym: Periodically

Synonym: sporadically (adv). (additional references)

Context	Synonyms within Context (source: adapted from Roget's Thesaurus).
Order	Adverb: in order; methodically; Adjective: in -turn, - its turn; step by step; by regular -steps, -gradations, -stages, -intervals; seriatim, systematically, by clockwork, gradatim; at stated periods; (periodically).
Regularity of recurrence Periodicity	Adverb: periodically; Adjective: at regular intervals, at stated times; at fixed established, at established periods; punctually; Adjective: de die in diem; from day to day, day by day.
Source: adapted from Roget's Thesaurus.

Crosswords: Periodically

English words defined with "periodically": accrued, accumulated ♦ cork oak, cycle, cyclic neutropenia ♦ depreciation charge ♦ estimated tax, Exuviability ♦ Geocyclic ♦ issue ♦ macula, molter, moulter ♦ national debt ceiling, number ♦ Phoenix, punctuate ♦ Quercus suber ♦ Rheotome ♦ Steam packet, Stock taking, strand, sunspot ♦ Variable star. (references)

Specialty definitions using "periodically": periodically loaded waveguide. (references)

Domain	Usage
Screenplays	I think she periodically makes a whirring noise and then just shuts down. (Gilmore Girls; writing credit: Povl Erik Carstensen; Sebastian Dorset)
Source: compiled by the editor from various references; see credits.

Domain	Title
Books	Analysis of Periodically Time-Varying Systems: Communications and Control Engineering Series (reference) Compactly Covered Reflections: Extension of Uniform Dualities and Generalized Almost Periodically (reference) Qualitative Analysis of the Periodically Forced Relaxation Oscillations (Memoirs of the American Mathematical Society, 244) (reference) (more book examples)
Source: compiled by the editor from various references; see credits.

Thumbnail	Description & Credit
	Plant physiologist Christina Walters is lowering a container of seeds into a vat of liquid nitrogen that will cryopreserve them. These vats can hold 5,000 containers of up to 2,000 seeds each. The longevity of seeds stored in this fashion is projected to be thousands of years, but scientist periodically remove samples to assess their viability and vigor. P.Credit: USDA ARS News; photo by Scott Bauer..
Source: compiled by the editor from various references; see credits.

Author	Quotation
Jacob Burckhardt	The people no longer believe in principles, but will probably periodically believe in saviours.
Source: compiled by the editor from various references.

Author	Date	Quotation
Communist Manifesto	1848	In these crises a great part not only of the existing products, but also of the previously created productive forces, are periodically destroyed. (reference)
Treaty of Versailles	1919	In periodically estimating Germany's capacity to pay, the Commission shall examine the German system of taxation, first, to the end that the sums for reparation which Germany is required to pay shall become a charge upon all her revenues prior to that for the service or discharge of any domestic loan, and secondly, so as to satisfy itself that, in general, the German scheme of taxation is fully as heavy proportionately as that of any of the Powers represented on the Commission. (reference)
Source: compiled by the editor from various references.

Subject	Topic	Quote
Health		Treatment needs to be periodically repeated to prevent relapse. (references)
		It is updated periodically to reflect current scientific knowledge. (references)
		You should check back periodically with this database as it is updated every 3 months. (references)
Business		The press periodically carries reports of abuses suffered by domestic servants, particularly women, at the hands of some employers. (references)
		Viewers will be able to pull up a menu on screen and interact with information that is periodically updated and that which they can view without detracting from their picture. (references)
		The National Association of Software Service Companies (NASSCOM), the premier industry association servicing the software sector periodically organizes seminars and workshops. (references)
Civil Liberties	Iraq	The Ministry of Culture and Information periodically held meetings at which they issued general guidelines for the press. (references)
	Costa Rica	Allegations of abuse by the Border Guard periodically arise. (references)
	Czech Republic	Prime Minister Zeman has called periodically for the Interior Ministry to reexamine or cancel the official registration of skinhead organizations and others propagating racial hatred or fascism. (references)
Economic History	Kuwait	Foreign-born U.S. citizens, especially those of Middle Eastern descent, periodically experience difficulties with visa and residency applications. (references)
	Laos	THE BANK OF LAO PDR PERIODICALLY SELLS SHORT TERM TREASURY BILLS THROUGH STATE OWNED COMMERCIAL BANKS TO THE GENERAL PUBLIC. (references)
	Philippines	Minimum wages are determined on a regional basis through the determination of Wage and Productivity Boards that meet periodically in each of the Philippine government's 16 administrative regions. (references)
Human Rights	Zambia	Provincial human rights committees periodically inspected prison conditions. (references)
	Zambia	The conflict in Angola periodically led to armed attacks within the country's territory, which resulted in civilian deaths; in November seven citizens were killed in one of these armed attacks perpetrated by Angolan government soldiers. (references)
	China	In June 1999 Anhui province promulgated amended family planning rules that stated that each couple "is encouraged" to have only one child, that second births are "strictly controlled," and that "unplanned births are forbidden." Women of childbearing age are required periodically to undergo pregnancy tests, and couples are required to "practice effective contraceptive measures." Couples already having a child are required to adopt long-term birth control measures. (references)
Minorities	Tanzania	An interdenominational religious council periodically meets to discuss issues of mutual concern, such as the recent violence in Zanzibar. (references)
	Yemen	Tensions, which periodically escalate into violent confrontations, continue between the Government and the Khowlan, al-Zaydi and Jahm tribes in Marib governorate. (references)
	Malta	Owners of some bars and discos periodically discouraged or prohibited darker-skinned persons, especially of African or Arab origin from entering their establishments. (references)
Political Economy	Costa Rica	A few irritants arise periodically in the relationship. (references)
	SPAIN	Software piracy has periodically been a serious problem for Spain, leading to its inclusion on the Special 301 "watch list" in 1999. Measures instituted by the Spanish Government to improve property rights for software in recent years led to Spain's removal from the Special 301 list in 2001. (references)
	Israel	Under U.S. sponsorship, Israel and Syria have periodically conducted talks aimed at achieving a peace agreement. (references)
Political Rights	Georgia	Elections have been held periodically by the separatist governments of Abkhazia and South Ossetia, which remained outside government control. (references)
Trade	China	Import Substitution Policies: China committed to eliminate all import substitution policies and regulations as one of the conditions of the 1992 market access MOU, but periodically continues to issues such regulations. (references)
	Russia	Federal legislation on the development of free economic zones (FEZs) is no longer a Russian priority, despite draft bills which periodically resurface. (references)
Travel	Chad	This laterite road is sometimes well maintained but periodically falls into disrepair when funding is scarce. (references)
	Nepal	Because of frequently changing security conditions, U.S. government employees are periodically forbidden from road travel outside the Kathmandu valley, particularly when the likelihood of violence is high, such as during elections or on Maoist anniversary dates. (references)
	Thailand	Excellent medical treatment is available in Bangkok, with good to adequate treatment available throughout the country . While the general level of health and nutrition is good, some tropical diseases are a problem . Hepatitis is endemic . The incidence of AIDS has leveled off due to educational awareness campaigns by the Royal Thai Government . However, Thailand is still considered a high-risk country, especially among prostitutes and intravenous drug users . Japanese encephalitis and malaria are a problem in rural border areas, but generally not in Bangkok, major cities, or major tourist destinations . Dengue fever outbreaks occur periodically throughout the country . Rabies is also a risk to consider due to the large number of abandoned animals roaming the streets. (references)
Women	Singapore	The authorities periodically carry out crackdowns on solicitation for prostitution, and arrest and deport foreign prostitutes, particularly when their activities take place outside of informally designated red light areas. (references)
	Paraguay	Law enforcement officials periodically stage raids on houses of prostitution. (references)
	Bulgaria	The AAF reports that it periodically receives client referrals from police. (references)
Worker Rights	Bhutan	Wage rates are revised periodically, and range upward from a minimum of roughly $2.50 (100 ngultrums) per day plus various allowances paid in cash or kind. (references)
	Kuwait	To decrease accident rates, the Government periodically inspects installations to raise awareness among workers and employers, and to ensure that they abide by the safety rules, control the pollution resulting from certain dangerous industries, train workers who use new machines in specialized institutes, and report violations. (references)
	Iceland	The various trade unions and management organizations periodically negotiate collective bargaining agreements that set specific terms for workers' pay, hours, and other conditions. (references)
Source: compiled by the editor from ICON Group International, Inc.; see credits.

Speaker	Term	Phrase(s)
Martin van Buren	1837-1841	Such attempts at dangerous agitation may periodically return, but with each the object will be better understood.
James K. Polk	1845-1849	Melancholy is the condition of that people whose government can be sustained only by a system which periodically transfers large amounts from the labor of the many to the coffers of the few.
Source: compiled by the editor from various references.

"Periodically" is generally used as an adverb (general) -- approximately 99.25% of the time. "Periodically" is used about 399 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted)

Parts of Speech	Percent	Usage per 100 Million Words	Rank in English
Adverb (general)	99.25%	396	14,082
Noun (proper)	0.75%	3	202,518
Total	100.00%	399	N/A

Expressions using "periodically": periodically loaded waveguide ♦ periodically unattended machinery space. Additional references.
Hyphenated Usage
	Beginning with "periodically": periodically-distributed, periodically-elected.
Source: compiled by the editor from various references; see credits.

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Language		Translations for "periodically"; alternative meanings/domain in parentheses.
Albanian		periodikisht, herë pas here (ever and anon, frequently, here and there, now and again, now and then, occasionally, off and on, on occasion, sometimes). (various references)

Arabic		‏في أوقات معلومة, ‏على نحو دوري, ‏دوريا. (various references)

Bulgarian		в периодично издание, от време на време (every so often, now and again, now and then, occasionally, off and on, once in a while), периодично (alternately). (various references)

Chinese		期刊地. (various references)

Czech		pravidelnì (regularly, steadily). (various references)

Danish		periodisk unbemandet maskinrum (periodically unmanned engine room), periodisk ubemandet maskinrum (periodically unattended machinery space), periodisk belastet bølgeleder (periodically loaded waveguide), tyndfilmsbølgeleder (periodically-distributed thin-film waveguide, thin film waveguide), regelmaessigt i Europa at organisere en stoerre udstilling af boeger (to organize periodically in Europe a large-scale exhibition of books), i draabeslagapparatur frembringes en hurtigstroemmende vandstraale gennem hvilken metalproevestykkerne foeres periodisk (drop impingement apparatus producing a rapidly flowing jet of water through which the metal test-pieces are periodically passed), de loebende indkomst-og formueskatter omfatter alle de obligatoriske betalinger,som det offentlige og den oevrige verden regelmaessigt paaligner institutionelle enheders indkomst og formue (current taxes on income and wealth cover all compulsory payments levied periodically by general government and by the rest of the world on the income and wealth of institutional units), akselkasse med glidelejer med periodisk smoering (periodically-lubricated(bearing)axle-box). (various references)

Dutch		periodieke organisatie in Europa van een tentoonstelling op grote schaal van boeken (to organize periodically in Europe a large-scale exhibition of books), tijdelijk onbemande machinekamer (periodically unattended machinery space, periodically unmanned engine room), ruppe slagapparaten produceren een snel stromende waterstraal waardoor periodiek metaalmonsters bewegen (drop impingement apparatus producing a rapidly flowing jet of water through which the metal test-pieces are periodically passed), golfgeleider met repeterende belasting (periodically loaded waveguide), glijlagerpot met periodieke smering (periodically-lubricated(bearing)axle-box), dunne laag golfgeleider (periodically-distributed thin-film waveguide, thin film waveguide), de belastingen op inkomen en vermogen omvatten alle verplichte betalingen die regelmatig door de overheid en door het buitenland op het inkomen en het vermogen van institutionele eenheden worden gevorderd (current taxes on income and wealth cover all compulsory payments levied periodically by general government and by the rest of the world on the income and wealth of institutional units). (various references)

Finnish		jaksoittain (serially). (various references)

French		périodiquement. (various references)

German		periodisch (circular, cyclic, cyclical, intermittent, oscillatory, periodic, periodic (niet: periodical), periodical, recurring, regular). (various references)

Greek		περιοδικά (occasionally, periodicals). (various references)

Hungarian		idõszakosan. (various references)

Italian		periodicamente. (various references)

Japanese Kanji		鹿追 . (various references)

Japanese Katakana		しかおい. (various references)

Korean		� �기� �으로. (various references)

Pig Latin		eriodicallypay

Portuguese		periódico (iterant, journal box, magazine, newspapers, periodic, periodical, recurrent, serial). (various references)

Romanian		periodic (periodic, periodical, recurrent, round), din când în când (at intervals, at times, ever and anon, every now and then, every so often, from time to time, now and again, now and then, occasionally, once in a while). (various references)

Russian		время от времени (at odd times, from time to time, from time-to-time, now and again, now and then, occasionally, off and on, on and again, on and off, time after time). (various references)

Serbo-Croatian		povremeno (time: at times). (various references)

Spanish		periódicamente. (various references)

Swedish		periodiskt. (various references)
Source: compiled by the editor from various translation references.

Derivations
	Words ending with "periodically": aperiodically, photoperiodically. (additional references)
Misspellings
	"Periodically" is suggested in spellcheckers for the following: aperiodically, parodically, periodicely. (additional references)
Source: compiled by the editor, based on several corpora (additional references).

# of Phoneme Matches	Pronunciation	Word(s) rhyming with "periodically" (pronounced pē'rēÄ"dikulē or pē'rēÄ"diklē)
7	-Ä" d i k u l ē	methodically.
5	-i k u l ē	chronically, clinically, comically, critically, cynically, diametrically, electrically, electronically, empirically, ethically, fanatically, geographically, hermetically, historically, intrinsically, journalistically, magically, magnetically, majestically, mathematically, metrically, mineralogically, optimistically, parenthetically, pathetically, philosophically, physically, politically, pragmatically, ritualistically, romantically, sardonically, scientifically, skeptically, statistically, surgically, symbolically, sympathetically, tactically, technically, technologically, theatrically, theoretically, therapeutically, uncritically.
4	-k u l ē	botanically, broccoli, fiscally, frantically, locally, luckily, unequivocally, vocally.
3	-u l ē	abnormally, abysmally, accidentally, actually, additionally, agriculturally, anecdotally, anencephaly, angrily, annually, anomaly, arbitrarily, architecturally, artfully, artificially, beneficially, bilaterally, blissfully, bodily, brutally, busily, carefully, casually, centrally, cerebrally, cheerfully, Cicely, circumstantially, civilly, clumsily, coincidentally, commercially, conceptually, conditionally, confidentially, congressionally, conspiratorially, constitutionally, continentally, continually, contractually, contradictorily, conventionally, cordially, crazily, criminally, culturally, customarily, delightfully, developmentally, diagonally, digitally, dismally, diurnally, dorsally, dreadfully, dutifully, easily, editorially, educationally, eerily, emotionally, environmentally, equally, essentially, eternally, eventually, exceptionally, experimentally, exponentially, externally, extraordinarily, facsimile, factually, faithfully, family, fatally, federally, finally, financially, fitfully, florally, forcefully, formally, fractionally, frightfully, frugally, functionally, fundamentally, gainfully, generally, generationally, giggly, gleefully, globally, gloomily, governmentally, gracefully, gradually, gratefully, gravelly, gravitationally, greedily, habitually, handily, happily, hastily, haughtily, heartily, heavily, helpfully, homily, hopefully, horizontally, hungrily, icily, illegally, impartially, incidentally, incrementally, individually, industrially, informally, initially, institutionally, intellectually, intentionally, internally, internationally, involuntarily, irrationally, jauntily, joyfully, judicially, lawfully, lazily, legally, liberally, literally, loyally, manfully, manually, marginally, masterfully, materially, meaningfully, medicinally, mentally, mercifully, merrily, mightily, militarily, minimally, momentarily, monetarily, monopoly, monumentally, morally, mortally, multifamily, multilaterally, municipally, mutually, nasally, nationally, nattily, naturally, necessarily, noisily, nominally, normally, novelly, nutritionally, occasionally, officially, oligopoly, operationally, orally, orchestrally, ordinarily, originally, painfully, partially, peacefully, perennially, peripherally, perpetually, personally, phenomenally, pitifully, playfully, potentially, preferentially, preliminarily, presidentially, primarily, procedurally, professionally, proportionally, provincially, provisionally, purposefully, quintessentially, racially, radially, rationally, readily, regally, regionally, regretfully, respectfully, rightfully, royally, ruefully, satisfactorily, scantily, seasonally, secondarily, semiannually, sequentially, serenely, severally, sexually, skillfully, sleepily, sloppily, socially, specially, speedily, spiritually, statutorily, steadily, steamily, structurally, subfamily, subliminally, substantially, subtly, successfully, summarily, supremely, tactfully, tangentially, tastefully, tearfully, temperamentally, temporally, temporarily, terminally, territorially, testily, thankfully, thoughtfully, totally, traditionally, Tripoli, truthfully, uncannily, unconditionally, unconstitutionally, uneasily, unhappily, unilaterally, unintentionally, universally, unlawfully, unnaturally, unnecessarily, unofficially, unsuccessfully, unusually, usefully, usually, virtually, viscerally, visually, vitally, voluntarily, warily, wearily, wiggly, wilfully, willfully, wishfully, wistfully, wittily, wobbly, woefully, wonderfully, wrongfully.
5	-d i k l ē	radically, sporadically.
4	-i k l ē	academically, acoustically, aerobically, aerodynamically, aesthetically, algebraically, alphabetically, analytically, angelically, apologetically, artistically, astronomically, authentically, automatically, basically, biologically, categorically, characteristically, chronologically, classically, cosmetically, democratically, demographically, diplomatically, dogmatically, domestically, dramatically, drastically, ecologically, economically, ecstatically, emphatically, energetically, enthusiastically, erratically, ethnically, euphemistically, fantastically, forensically, generically, genetically, geometrically, geopolitically, graphically, heroically, hypothetically, hysterically, ideologically, idiotically, ironically, linguistically, logically, logistically, lyrically, mechanically, metaphorically, microscopically, musically, numerically, optically, organically, pathologically, phonetically, physiologically, poetically, prolifically, psychologically, publically, publicly, realistically, rhetorically, rhythmically, sarcastically, specifically, stoically, strategically, stylistically, symmetrically, synthetically, systematically, systemically, terrifically, thematically, theologically, tragically, uncharacteristically, undiplomatically, unrealistically, vertically, volcanically.
3	-k l ē	alchemically, anatomically, athletically, biweekly, blankly, briskly, brusquely, chemically, darkly, frankly, grotesquely, likely, medically, meekly, newsweekly, obliquely, paradoxically, practically, prickly, quickly, sickly, sleekly, slickly, sparkly, starkly, thickly, typically, uniquely, unlikely, weakly, weekly.
Source: compiled by the editor (additional references); see credits.

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-c-d-e-i-i-l-l-o-p-r-y"
	-2 letters: periodical.
	-3 letters: aperiodic, caprioled, cordially, oedipally, pilloried.
	-4 letters: arillode, arilloid, calliope, calliper, capriole, carolled, collared, collider, colliery, collyria, copyread, docilely, epically, lipoidal, peridial, periodic, pillared, placidly, rocaille.
	-5 letters: acridly, alloyed, caliper, calorie, caloyer, cariole, caroled, cedilla, ciliary, clayier, clearly, clypeal, coalier, collard, collide, collied, collier, cordial, dallier, dariole, decrial, deliria, dialler, diploic, dipolar, eidolic.
	Words containing the letters "a-c-d-e-i-i-l-l-o-p-r-y"
	+1 letter: aperiodically.
	+3 letters: ideographically.
	+5 letters: photoperiodically.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.