Copyright © Philip M. Parker, INSEAD. Terms of Use.

Definition: Coma |
ComaNoun1. A state of deep and often prolonged unconsciousness; usually the result of disease or injury. 2. A usually terminal tuft of hairs especially on a seed. 3. (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Date "coma" was first used in popular English literature: sometime before 1861. (references) |
Etymology: Coma \Co"ma\, noun. [Latin, hair, from Greek ko`mh.]. (Websters 1913) |
| Domain | Definition |
Aerospace | 1. The gaseous envelope that surrounds the nucleus of a comet.2. In an optical system, a result of spherical aberration in which a point source of light, not on the axis, has a blurred, comet-shaped image. (references) |
| International Astronomical Union Abbreviations for Coma Berenices. See constellation. (references) | |
Astronomy | A spherical cloud of material surrounding the head of a comet. This material is mostly gas that the Sun has caused to boil off the comet's icy nucleus. This gas shines both by reflected sunlight and light emitted by excited molecules. A cometary coma can extend up to a million miles from the nucleus. (references) |
Electrical Engineering | A spot distortion occurring together with spherical aberration and giving a comet-like appearance to a stationary spot. Source: European Union. (references) |
Fine Arts | One of the off-axis aberrations of lenses, resulting in unsymmetrical defects in image points. Source: European Union. (references) |
Geography | The nebulous cloud surrounding the nucleus of a comet. Together, the coma and nucleus form the comet's head. Source: European Union. (references) |
Public Administration | Unnatural, lethargic, sleeplike state of unconsciousness that can accompany brain damage, heart attack, heavy infection, toxic state or other major trauma. Source: European Union. (references) |
Space | The cloud of diffuse material surrounding the nucleus of a comet. (references) |
Source: compiled by the editor from various references; see credits. | |
| The following table is compiled from various sources, across various languages. When English abbreviations or acronyms come from a non-English source, this is noted. | |||
| Entry | Source | Expression | Field |
COMA | English | Coke Oven Managers'Association | Chemical Industry, Mining |
Source: compiled by the editor, based on several corpora (additional references). | |||
Synonym: ComaSynonym: comatoseness (n). (additional references) |
| Context | Synonyms within Context (source: adapted from Roget's Thesaurus). |
Inactivity | Sleep, slumber; sound sleep, heavy sleep, balmy sleep; Morpheus; Somnus; coma, trance, ecstasis, dream, hibernation, nap, doze, snooze, siesta, wink of sleep, forty winks, snore; hypnology. |
Insensibility | Torpor, torpidity; obstupefaction, lethargy, coma, trance, vegetative state; sleep; suspended animation; stupor, stupefaction; paralysis, palsy; numbness; (physical insensibility). |
Physical Insensibility | Noun: insensibility, physical insensibility; obtuseness. Adjective: palsy, paralysis, paraesthesia, anaesthesia; sleep; hemiplegia, motor paralysis; vegetable state; coma. |
| Source: adapted from Roget's Thesaurus. | |
| Domain | Usage | |
Screenplays | It took a coma to wake me up. (While You Were Sleeping; writing credit: Daniel G. Sullivan and Fredric LeBow.) Well, Donnie's in a coma, he had a very bad acid experience. (Manhattan; writing credit: Woody Allen ; Marshall Brickman) Until I was in a coma for six years. (The Dead Zone; writing credit: Aleksandar Djordjevic) You've had icing enough to put you in a coma. (The Gift; writing credit: Billy Bob Thornton; Tom Epperson) Y'know, one of these days, you're going to wake up in a coma. (Buffy the Vampire Slayer; writing credit: Doreen Spicer) | |
Movie/TV Titles | Karl's In a Coma (2000) C'era un cinese in coma (2000) | |
Source: compiled by the editor from various references; see credits. | ||
| Domain | Title |
Books | |
Theater & Movies | |
Music |
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Source: compiled by the editor from various references; see credits. | |
| Thumbnail | Description & Credit | Thumbnail | Description & Credit |
![]() | Lo que usted come es vital para usted-- y para su bebé. : Si está embarazada, coma una buena variedad de alimentos. Credit: National Library of Medicine. | ![]() | Ahorre, coma sabroso Y Alimente Bien A Su Familia! : Busquela En Su Tienda. Credit: National Library of Medicine. |
Source: pictures compiled by the editor from various references; see picture credits. | |||
| Subject | Topic | Quote |
Health | A coma rarely lasts more than 2 to 4 weeks. (references) | |
A coma is a profound or deep state of unconsciousness. (references) | ||
Patients recovering from coma require close medical supervision. (references) | ||
Business | Unlike in the United States, which imposes a federally mandated RDA on nutritional supplements, the United Kingdom has no national RDA. In light of recent scares regarding safe upper limits for such vitamins as B6, A, and C, the U.K. government's Committee on the Medical Aspects of Food and Nutrition Policy (COMA, which will be renamed the Scientific Advisory Committee on Nutrition, or, SACN, in 2000) established an advisory group to recommend maximum daily allowances for vitamins and minerals. (references) | |
Human Rights | Turkey | He was rescued and recovered after being in a coma for 3 days. (references) |
Israel and the occupied territories | While en route, Awad lapsed into a coma and was pronounced dead on arrival at the hospital. (references) | |
Jordan | Shalback was in a coma when he arrived at the hospital; he died from his injuries 10 days later. (references) | |
Lexicography | Devil's Dictionary | BERENICE'S :HAIR:, n. A constellation (Coma Berenices) named in honor of one who sacrificed her hair to save her husband. Her locks an ancient lady gave Her loving husband's life to save; And men -- they honored so the dame -- Upon some stars bestowed her name. But to our modern married fair, Who'd give their lords to save their hair, No stellar recognition's given. There are not stars enough in heaven. G.J. |
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| "Coma" is generally used as a noun (singular) -- approximately 97.53% of the time. "Coma" is used about 243 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 |
| Noun (singular) | 97.53% | 237 | 19,467 |
| Noun (proper) | 2.47% | 6 | 143,867 |
| Total | 100.00% | 243 | N/A |
Source: compiled by the editor from several corpora; see credits.
| The following table summarizes the usage of "coma" based on a population census conducted in the United States. Ranks and frequencies are based on all names reported and classified. |
| Name | Usage/Gender | Usage per 100 million Persons | Rank in USA |
| Coma | Last name | 170 | 41,082 |
| Source: compiled by the editor from several corpora; see credits. | |||
Expressions using "coma": be in a coma ♦ Coma Berenices ♦ deep coma ♦ diabetic coma ♦ fall into a coma ♦ Glasgow Coma Scale ♦ go into a coma ♦ hepatic coma ♦ Hyperglycemic Hyperosmolar Nonketotic Coma ♦ inner coma ♦ inner part of the coma ♦ insulin coma ♦ Kussmaul's coma ♦ slip into a coma. Additional references. | |
| Hyphenated Usage | |
Beginning with "coma": coma-like, coma-type. | |
Ending with "coma": near-coma, semi-coma. | |
| 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 "coma"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Albanian | komë, humbje e thellë e ndjenjave. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arabic | غيبوبة (shock, stupefaction, stupor, zombie), سبات (lethargy, sleep, sopor, stupor, torpor), زغب (fluff, fuzz, hairy, nap, pile, plumule, pubescence, quilt), ذؤابة المذنب. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Bulgarian | кома (unconsciousness), глава на комета, влакнест семенен придатък, несиметрична аберация. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Chinese | 昏迷 (Comatose, Comatous, stupor). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Czech | kóma, hluboké bezvìdomí. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Danish | coma, koma, halo (glory, halo). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dutch | coma (deep coma, deep lethargy, halo). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Farsi | اغماء , بیهشی . (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Finnish | syvä tajuttomuus, rengasilmiö (halo), kooma, koma, halo (halo). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
French | coma. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
German | koma. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Greek | κώμα. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hebrew | תר"מת. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hungarian | kóma (dead faint), ájulás (collapse, faint, fainting, faintness, swoon, syncope). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Indonesian | keadaan pingsan. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Italian | coma. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Kanji | 昏睡 (dead sleep, lethargy, stupor). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Katakana | ""すい (dead sleep, lethargy, stupor), コマ (frame in a film or video). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manx | tappag (cow-lick, crest, forelock, tuft, tuft of feathers), taaue-neeal (trance). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pig Latin | omacay coma (eat). (various references) comã. (various references) кома. (various references) rep (end, rear end, tail, tail end, trail), pramen (lock, patch, tress, tussock, wisp), koma. (various references) coma (comma, point). (various references) koma, dvala (apathy, dormancy, doze, lethargy, stupor, torpidity, torpor). (various references) ส าพไม่รู้สึกตัวของผู้ป่วย, กลุ่มเมฆล้อมรอบส่วนหัวของ"าวหาง. (various references) püskül (beard, fringe, tag, tassel, thrum, tuft), kuyrukluyıldız saçı, koma, baygınlık (faint, fainting, insensibility, stupor, swoon, syncopal, syncope, unconsciousness). (various references) чубок (bang, cirrus), крона (bull, crown, crown-piece, krone, leafage), оболонка (capsule, carcass, casing, casket, covering, envelope, membrane, operculum, rind, sheath, shell, skin, tunic). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Language | Period | Translations |
| Latin | 500 BCE-Modern | lethargus. (various references) |
| Source: compiled by the editor from various references. | ||
Derivations | |
Words beginning with "coma": comade, comae, comake, comaker, comakers, comakes, comaking, comal, comanage, comanaged, comanagement, comanagements, comanager, comanagers, comanages, comanaging, comas, comate, comates, comatic, comatik, comatiks, comatose, comatula, comatulae. (additional references) | |
Words ending with "coma": carcinosarcoma, fibrosarcoma, glaucoma, leucoma, lymphosarcoma, osteosarcoma, rhabdomyosarcoma, sarcoma, semicoma. (additional references) | |
Words containing "coma": carcinosarcomas, carcinosarcomata, cocomat, cocomats, decalcomania, decalcomanias, fibrosarcomas, fibrosarcomata, glaucomas, gynecomastia, gynecomastias, leucomas, lymphosarcomas, lymphosarcomata, osteosarcomas, osteosarcomata, rhabdomyosarcomas, rhabdomyosarcomata, sarcomas, sarcomata, sarcomatoses, sarcomatosis, sarcomatous, semicomas. (additional references) | |
| |
"Coma" is suggested in spellcheckers for the following: accomo, acoma, Acuma, aoma, boma, Bomza, caama, caja, cama, Camag, camma, cbm, ccma, Ccmi, cdma, ceam, Cemat, Cemc, cemi, cena, cfm, choam, choma, Chomba, Ciam, cina, cma, Cmaj, cme, cmea, cmi, cmome, cmos, cmu, cmw, coa, coam, coav, Coba, cofa, coga, cohab, colmap, Comac, comae, comag, Comair, comaq, comar, Comark, comaz, Comba, comc, comdap, comeh, comfar, comg, comha, comi, comio, comla, Commg, commi, commy, comod, compa, coms, comt, comtat, comul, comum, comun, comy, cona, Conae, Conaf, conam, conat, conay, coni, conna, conq, consa, conta, Conza, cooga, coomi, copa, Corma, corman, cosa, cosm, Cosma, Cosme, Cota, coum, Coumba, cova, cowa, coxa, coyme, cpm, Cpma, croam, csma, cuma, cume, cumi, cumme, Cuna, dcom, ecom, Fcmo, gompa, icuma, Koma, komai, komal, kome, komma, komme, Komo, Kouma, ooam, pcdma, rcvma, scoma, shoma. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
| # of Phoneme Matches | Pronunciation | Word(s) rhyming with "coma" (pronounced kō"mu) |
| 4 | k ō" m u | glaucoma. |
| 3 | -ō" m u | aroma, carcinoma, diploma, douma, lymphoma, melanoma, mesothelioma, papilloma, retinoblastoma, soma, stroma. |
Source: compiled by the editor (additional references); see credits. | ||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-c-m-o" | |
-1 letter: cam, mac, moa, moc, oca. | |
-2 letters: am, ma, mo, om. | |
| Words containing the letters "a-c-m-o" | |
+1 letter: cameo, campo, carom, comae, comal, comas, comma, macho, macon, macro, mocha. | |
+2 letters: anomic, atomic, caeoma, cameos, camion, campos, caroms, carrom, chroma, clamor, comade, comake, comate, combat, commas, copalm, cowman, crambo, macaco, machos, macons, macron, macros, manioc, mascon, mascot, mobcap, mochas, modica, mosaic, mucosa, oomiac, pomace, socman, tombac, tomcat, vomica. | |
+3 letters: aciform, acromia, acronym, ammonic, amoebic, anosmic, apomict, armlock, atomics, cabomba, caeomas, calomel, cameoed, camions, camorra, camphol, camphor, campion, campong, caromed, carroms, cembalo, chamiso, chamois, chamoix, chromas, clamors, clamour, coadmit, coaming, cocomat, cocoyam, comaker, comakes, comates, comatic, comatik, combats, comical, comitia, command, commata, compact, company, compare, compart, compass, comrade, copalms, coremia, crambos, crampon, czardom, domical, encomia, hammock, leucoma, limacon, lockram, macacos, machzor, macrons, mammock, manioca, maniocs, marcato, mascons, mascots, masonic, mattock, minorca, mobcaps, mochila, monacid, monadic, monarch, morceau, mosaics, mucosae, mucosal, mucosas, nomadic, nomarch, oghamic, oilcamp, oomiack, oomiacs, osmatic, pomaces, potamic, romance, sarcoma, scotoma, sockman, somatic, stomach, tomback, tombacs, tomcats, unmacho, vomicae. | |
| 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. | |
| 1. Definition 2. Synonyms 3. Crosswords 4. Usage: Modern | 5. Usage: Commercial 6. Images: Photo Album 7. Quotations: Non-fiction 8. Usage Frequency | 9. Names: Frequency 10. Expressions 11. Expressions: Internet 12. Translations: Modern | 13. Translations: Ancient 14. Abbreviations 15. Acronyms 16. Derivations | 17. Rhymes 18. Anagrams 19. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.