Efficacious

Definitions: Efficacious

Efficacious

Adjective

1. Marked by qualities giving the power to produce an intended effect; "written propaganda is less efficacious than the habits and prejudices...of the readers"-Aldous Huxley; "the medicine is efficacious in stopping a cough".

2. Producing or capable of producing an intended result or having a striking effect; "an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation"-LewisMumford; "effective teaching methods"; "effective steps toward peace"; "made an effective entrance"; "his complaint proved to be effectual in bringing action"; "an efficacious law".

Date "efficacious" was first used in popular English literature: sometime before 1517. (references)

Etymology: Efficacious \Ef`fi*ca"cious\, adjective. [Latin expression eficax, -acis, from efficere. See Effect, noun.]. (Websters 1913)

Synonyms: Efficacious

Synonyms: effective (adj), effectual (adj). (additional references)

Antonyms: ineffective (adj), inefficacious (adj). (additional references)

Context	Synonyms within Context (source: adapted from Roget's Thesaurus).
Agency	Adjective: operative, efficient, efficacious, practical, effectual.
Power	Adjective: powerful, puissant; potential; capable, able; equal to, up to; cogent, valid; efficient, productive; effective, effectual, efficacious, adequate, competent; multipotent, plenipotent, omnipotent; almighty.
Utility	Adequate; efficient, efficacious; effective, effectual; expedient.
Source: adapted from Roget's Thesaurus.

Crosswords: Efficacious

English words defined with "efficacious": Anticatarrhal, Antiodontalgic ♦ causally, Cross potent ♦ effective, effectual, Effectual calling, Energetical ♦ Inflential ♦ sound bow ♦ Theriaca ♦ Virtuate. (references)

Specialty definitions using "efficacious": ACUPUNCTURIST ♦ Equally as well ♦ HOMILETICS ♦ tzetze. (references)

Etymologies containing "efficacious": Efficacy ♦ Virtuate. (references)

Domain	Title
Books	Efficacious Love Its Meaning and Function in the Theology of Juan Luis Segundo (reference) English Chinese Highly Efficacious Chinese Patent Medicines (reference) Highly Efficacious Chinese Patent Medicines (reference) Melanchthon's Christum cognoscere : Christ's efficacious presence in the eucharistic theology of Melanchthon (reference) (more book examples)
Source: compiled by the editor from various references; see credits.

Author	Quotation
Samuel Johnson	Example is always more efficacious than precept.
Source: compiled by the editor from various references.

Title	Author	Quote
Les Miserables	Hugo, Victor	No study is more efficacious and more prolific in instruction.
Source: compiled by the editor from various references.

Subject	Topic	Quote
Health		Single-donor plasma is efficacious in the treatment of mild deficiencies of stable clotting factors. (references)
		In other words, the monitor must be efficacious in recognizing apnea and triggering its alarm for prolonged apnea. (references)
		Some noninvasive methods of sensing breathing other than transthoracic impedance might be more efficacious than impedance. (references)
Children	Zimbabwe	Body parts from children and teenagers reportedly were considered the most efficacious for some such purposes. (references)
Lexicography	Devil's Dictionary	TZETZE (or :TSETSE:) :FLY:, n. An African insect (Glossina morsitans) whose bite is commonly regarded as nature's most efficacious remedy for insomnia, though some patients prefer that of the American novelist (Mendax interminabilis). U
Source: compiled by the editor from ICON Group International, Inc.; see credits.

Speaker	Term	Phrase(s)
George Washington	1789-1797	Nor ought I to omit to acknowledge the efficacious and patriotic cooperation which I have experienced from the chief magistrates of the States to which my requisitions have been addressed.
Source: compiled by the editor from various references.

"Efficacious" is generally used as an adjective (general or positive) -- approximately 100.00% of the time. "Efficacious" is used about 64 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
Adjective (general or positive)	100%	64	42,009

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 "efficacious"; alternative meanings/domain in parentheses.
Albanian		i efektshëm (effective, effectual, efficient, forceful, potent, streamlined). (various references)

Arabic		‏فعال (active, businesslike, dynamic, effective, effectual, efficient, energetic, forceful, forcible, functional, living, operative, potent, reliable, trenchant, valid, virtuous), ‏مؤثر (acting, affective, altruist, effective, effectual, emotional, influential, moving, operative, poignant, stirring, touching). (various references)

Bulgarian		резултатен (efficient, operative, pregnant, useful), ефикасен (active, effective, effectual, efficient, helpful, operative, potent, sovereign). (various references)

Chinese		靈 (alert, departed soul, effective, intelligence, quick), 有效 (costeffective, Effective, Operative). (various references)

Czech		efektivní (effective, efficient), úèinný (active, effective, effectual, efficient, operative, practical, telling). (various references)

Dutch		effectief (actual, effective, effectual, real), doeltreffend (effective, effectual), afdoend (conclusive, decisive, effective, effectual). (various references)

Esperanto		efika (effective, effectual). (various references)

Farsi		موثر (Drastic, Effective, Impressive, Live, Operative, Pathetic, Pithy, Pivotal, Sensational, Valid, Weighty). (various references)

French		efficace (effective, effectual, efficient). (various references)

Frisian		beskiedend (decisive, effective, effectual), ôfdwaande (decisive, effective, effectual). (various references)

German		wirksam (effective, effectively, effectual, effectually, operative, potent, powerful). (various references)

Greek		αποτελεσματικόσ (effective, effectual, efficient, telling), δραστικόσ (drastic, potent). (various references)

Hebrew		יעיל (effective, effectual, efficient), תכליתי (down to earth, intentional, objective, purposeful, teleological). (various references)

Hungarian		hathatós (drastic, effective, effectual, efficient, forcible, potent, powerful, smart), hatékony (active, effective, effectual, efficient, have a lot on the ball, wholesome). (various references)

Indonesian		mujarab (abstract), manjur. (various references)

Italian		efficace (effective, effectual, efficient, operative, sound, strong). (various references)

Japanese Kanji		良く効く薬 (very efficacious medicine), 効が有る (to be beneficial to, to be efficacious). (various references)

Japanese Katakana		�"うがある (to be beneficial to, to be efficacious), よくきくくすり (very efficacious medicine). (various references)

Korean		효과가 있�". (various references)

Manx		fondagh (effectual, efficient, firm, impregnable, of good standing, perfect, solid, stable, substantial, sufficent). (various references)

Papiamen		adekuado (adequate, conforming, effective, effectual, fitting, of use, suitable), adekuá (effective, effectual, of use, suitable). (various references)

Pig Latin		efficaciousay.(various references)

Portuguese		eficiente (businesslike, effective, effectual, efficient, useful, virtuous), eficaz (effective, effectual, efficiencies, efficient, incisive, live, operative, powerhouse, telling, virtual), incapaz (disabled, forceless, impotent, impoverished, inapt, incapable, incomplete, ineffective, inefficient, inept, insusceptible, powers, unable, unapt, unfit, unsusceptible). (various references)

Romanian		eficace (acting, active, effective, effectual, efficient, energetic, operative, safe), productiv (active, efficient, efficiently, generous, productive, productively, rich), operant. (various references)

Russian		эффективный (effective, effectual, efficient). (various references)

Serbo-Croatian		efikasan (businesslike, effective, efficient, operative, rough and ready). (various references)

Spanish		eficaz (effective, effectual, efficient, operative, potent, telling), terminante (blunt, effective, effectual, forthright, round, strict). (various references)

Swedish		effektiv (effective, effectual, efficient, forcible, operative). (various references)

Thai		ที่ให้ผลตามต้องการ (โ�"ยเฉพาะที่เกี่ยวกับการรักษาพยาบาล). (various references)

Turkish		etkili (commanding, effective, effectual, efficient, forceful, forcible, hefty, influential, moving, operative, penetrating, penetrative, poignant, potent, powerful, sovereign, swinging, telling, trenchant), yeterli (adequate, ample, competent, decent, effectual, efficient, enough, equal, fit, qualified, satisfactory, satisfying, snug, sufficient, suited, that will do, working), yararlı (advantageous, beneficial, benign, benignant, good, handy, healthful, healthy, helpful, of use, profitable, salubrious, salutary, sanative, sanatory, subservient, useful, wholesome), tesirli (effective, influential, telling). (various references)

Turkmen		degerli (convincing, persuasive). (various references)

Ukranian		ефективний (active, effective, effectual, efficient), діючий (acting, active, alive, effective, effectual, going, operable, operating, operative, working), дійовий (acting, active, aggressive, effectual, forceful, valid, virtuous). (various references)

Vietnamese		có hiệu quả (effectively, telling). (various references)
Source: compiled by the editor from various translation references.

Language	Period	Translations
Latin	500 BCE-Modern	efficax. (various references)
Source: compiled by the editor from various references.

Derivations
	Words beginning with "efficacious": efficaciously, efficaciousness, efficaciousnesses. (additional references)
	Words ending with "efficacious": inefficacious. (additional references)
	Words containing "efficacious": inefficaciously, inefficaciousness, inefficaciousnesses. (additional references)
Misspellings
	"Efficacious" is suggested in spellcheckers for the following: efecacious, effecacious, effiacious, efficaceous, efficacios, efficaciuos, efficacous, efficasious, efficatious. (additional references)
Source: compiled by the editor, based on several corpora (additional references).

# of Phoneme Matches	Pronunciation	Word(s) rhyming with "efficacious" (pronounced e'fukā"shus)
4	-ā" sh u s	audacious, capacious, fallacious, flirtatious, gracious, hellacious, herbaceous, loquacious, ostentatious, predaceous, salacious, sebaceous, spacious, tenacious, vexatious, vivacious, voracious.
3	-sh u s	ambitious, anxious, atrocious, auspicious, capricious, cautious, conscientious, conscious, contentious, delicious, expeditious, facetious, factitious, ferocious, fictitious, fractious, inauspicious, infectious, injudicious, judicious, luscious, malicious, nauseous, noxious, nutritious, obnoxious, overambitious, pernicious, precious, precocious, pretentious, propitious, pugnacious, rambunctious, rapacious, repetitious, seditious, semiprecious, specious, subconscious, superstitious, surreptitious, suspicious, tendentious, unconscious, unpretentious, vicious.
Source: compiled by the editor (additional references); see credits.

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-c-c-e-f-f-i-i-o-s-u"
	-4 letters: coiffes, offices, suffice.
	-5 letters: accuse, caseic, coiffe, facies, fauces, fiasco, ficoes, fucose, office.
	Words containing the letters "a-c-c-e-f-f-i-i-o-s-u"
	+2 letters: efficaciously, inefficacious.
	+4 letters: efficaciousness, inefficaciously.
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.