Coma

['kəʊmə] or ['komə]

Definition

(noun.) a state of deep and often prolonged unconsciousness; usually the result of disease or injury.

(noun.) (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed.

(noun.) (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds).

Typed by Lesley--From WordNet

Definition

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

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

(n.) A tuft or bunch, -- as the assemblage of branches forming the head of a tree; or a cluster of bracts when empty and terminating the inflorescence of a plant; or a tuft of long hairs on certain seeds.

Checker: Michelle

Synonyms and Synonymous

n. [1]. (Med.) Lethargy, dozing, stupor, drowsiness (from disease).[2]. (Astron.) Envelope.[3]. (Bot.) Tuft, cluster, bunch, clump.

Checker: McDonald

Definition

n. (bot.) a tuft or bunch of hairy-like appendages as on some seeds: the leafy branches forming the head of a tree: (astron.) the nebulous envelope surrounding the nucleus of a comet.

n. deep sleep: stupor.—adj. Com′atose affected with coma: drowsy.

Checker: Walter