COMA

coma, comatoseness

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

coma

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

coma

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

Source: WordNet® 3.1

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Etymology 1

Noun

coma (plural comas)

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

Etymology 2

Noun

coma (plural comae)

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

(optics) A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.

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

Anagrams

• OAMC, camo, maco

Source: Wiktionary

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Co"ma, n. Etym: [NL., fr. Gr. Cemetery.]

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

Co"ma, n. Etym: [L., hair, fr. Gr.

1. (Astron.)

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

2. (Bot.)

Definition: A tuft or bunch, -- as the assemblage of branches forming the head of a tree; or a cluster of brachts when empty and terminating the inflorescence of a plant; or a tuft of long hairs on certain seeds. Coma Berenices ( Etym: [L.] (Astron.), a small constellation north of Virgo; -- called also Berenice's Hair.

Source: Webster’s Unabridged Dictionary 1913 Edition

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