Definition of Coma

1. Noun. A state of deep and often prolonged unconsciousness; usually the result of disease or injury.

Exact synonyms: Comatoseness
Generic synonyms: Unconsciousness
Specialized synonyms: Diabetic Coma, Kussmaul's Coma, Hepatic Coma
Derivative terms: Comatose, Comatose

2. Noun. (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds).
Category relationships: Botany, Phytology
Generic synonyms: Tuft, Tussock
Derivative terms: Comal

3. Noun. (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed.
Category relationships: Astronomy, Uranology
Group relationships: Comet
Generic synonyms: Cloud

Definition of Coma

1. n. A state of profound insensibility from which it is difficult or impossible to rouse a person. See Carus.

2. n. The envelope of a comet; a nebulous covering, which surrounds the nucleus or body of a comet.

Definition of Coma

1. Noun. A state of sleep from which one may not wake up, usually induced by some form of trauma. ¹

2. Noun. (astronomy) A cloud of dust surrounding the nucleus of a comet ¹

3. Noun. (optics) A defect characterized by diffuse, pear-shaped images that should be points ¹

¹ Source: wiktionary.com

Definition of Coma

1. a tuft of silky hairs [n -MAE] / a condition of prolonged unconsciousness [n -S]

Medical Definition of Coma

1. A deep prolonged unconsciousness where the patient cannot be aroused. This is usually as the result of a head injury, neurological disease, acute hydrocephaly, intoxication or metabolic derangement. (27 Sep 1997)

Lexicographical Neighbors of Coma

columnizing
columnless
columnlike
columns
coluracetam
colure
colures
colusite
coly
colypeptic
colza
colza oil
colzas
com'st
com-
coma (current term)
coma aberration
coma carcinomatosum
coma cast
coma scale
coma vigil
coma vigile
comade
comae
comagmatic
comake
comaker
comakers
comakes
comaking

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