coma

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coma

deep prolonged unconsciousness
Not to be confused with:
comma – punctuation mark (,) that indicates a pause in a sentence: A misplaced comma can convey a very different meaning.
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree

co·ma 1

 (kō′mə)
n. pl. co·mas
A state of deep, often prolonged unconsciousness, usually the result of injury, disease, or poison, in which an individual is incapable of sensing or responding to external stimuli and internal needs.

[Greek kōma, deep sleep.]

co·ma 2

 (kō′mə)
n. pl. co·mae (-mē)
1. Astronomy The nebulous luminescent cloud surrounding the nucleus of a comet and composed of material evaporated from the nucleus when the comet is near the perihelion of its orbit. The nucleus and coma together form the head of a comet.
2. Botany A usually terminal tuft or cluster, especially a tuft of hairs on a seed, as on a willow or milkweed seed.
3. Physics A diffuse, comet-shaped image of a point source of light or radiation caused by aberration in an optical system.

[Latin, hair, from Greek komē.]

co′mal adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

coma

(ˈkəʊmə)
n, pl -mas
(Pathology) a state of unconsciousness from which a person cannot be aroused, caused by injury to the head, rupture of cerebral blood vessels, narcotics, poisons, etc
[C17: from medical Latin, from Greek kōma heavy sleep; related to Greek koitē bed, perhaps to Middle Irish cuma grief]

coma

(ˈkəʊmə)
n, pl -mae (-miː)
1. (Astronomy) astronomy the luminous cloud surrounding the frozen solid nucleus in the head of a comet, formed by vaporization of part of the nucleus when the comet is close to the sun
2. (Botany) botany
a. a tuft of hairs attached to the seed coat of some seeds
b. the terminal crown of leaves of palms and moss stems
3. (General Physics) optics a type of lens defect characterized by the formation of a diffuse pear-shaped image from a point object
[C17: from Latin: hair of the head, from Greek komē]
ˈcomal adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

co•ma1

(ˈkoʊ mə)

n., pl. -mas.
a state of prolonged unconsciousness, including a lack of response to stimuli, from which it is impossible to rouse a person.
[1640–50; < Greek kôma deep sleep]

co•ma2

(ˈkoʊ mə)

n., pl. -mae (-mē).
1. the nebulous envelope around the nucleus of a comet.
2. a monochromatic aberration of a lens or other optical system in which the image from a point source cannot be focused.
3. a tuft of hairs on a seed or a terminal cluster of leaves or bracts, as on a stem.
[1660–70; < Latin: hair < Greek kómē]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

co·ma 1

(kō′mə)
A state of deep unconsciousness resulting from disease or injury, from which a person cannot be aroused. A person in a coma usually is unable to respond to events taking place outside the body.

coma 2

The brightly shining cloud of gas that encircles the nucleus and makes up the major portion of the head of a comet that is near the sun.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.coma - a state of deep and often prolonged unconsciousness; usually the result of disease or injury
unconsciousness - a state lacking normal awareness of the self or environment
diabetic coma, Kussmaul's coma - coma that can develop in inadequately treated cases of diabetes mellitus
hepatic coma - coma that can occur in severe cases of liver disease
2.coma - (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds)
phytology, botany - the branch of biology that studies plants
tuft, tussock - a bunch of hair or feathers or growing grass
3.coma - (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
comet - (astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit
cloud - any collection of particles (e.g., smoke or dust) or gases that is visible
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

coma

noun unconsciousness, trance, oblivion, lethargy, stupor, torpor, somnolence, insensibility She had slipped into a coma by the time she reached the hospital.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
Translations
غَيْبُوبَةغَيْبوبَه، فُقْدان الذّاكِرَه
kómabezvědomí
comakoma
koomatajuttomuuskoma
koma
kóma
昏睡
혼수
koma
koma
comă
kóma
koma
สภาพไม่รู้สึกตัวของผู้ป่วย
trạng thái hôn mê

coma

[ˈkəʊmə] Ncoma m
to be in a comaestar en (estado de) coma
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

coma

[ˈkəʊmə] ncoma m
to be in a coma → être dans le coma
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

coma

nKoma nt; to be in a comaim Koma liegen; to go or fall into a comains Koma fallen
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

coma

[ˈkəʊmə] n (Med) → coma m inv
to go into a coma → entrare in coma
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

coma

(ˈkoumə) noun
a long-continuing unconscious state. He was in a coma for several days after the accident.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

coma

غَيْبُوبَة kóma koma Koma κώμα coma kooma coma koma coma 昏睡 혼수 coma koma śpiączka coma кома koma สภาพไม่รู้สึกตัวของผู้ป่วย koma trạng thái hôn mê 昏迷
Multilingual Translator © HarperCollins Publishers 2009

coma

n coma m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Barbiturate coma and mannitol were administered to most patients who displayed an immune impairment in the presence of VAP (18).
Masson et al., "The use of bispectral index to monitor barbiturate coma in severely brain-injured patients with refractory intracranial hypertension," Anesthesia & Analgesia, vol.
Intriguingly, lightning injury [14] and therapeutic barbiturate coma [15] may also cause CSWS.
We present a case of progressive generalized cerebral atrophy in a patient with super refractory status epilepticus treated with prolonged barbiturate coma.
Refractory increased intracranial pressure in severe traumatic brain injury: Barbiturate coma and bispectral index monitoring.
Sedation and barbiturate coma: The use of sedation and barbiturates to decrease metabolic demand and, in the case of barbiturates, control intracranial hypertension, is not well-supported by evidence.10 Sedation can interfere with assessment of neurological function, even some time after the drug has been stopped.