Co"ma (?), n. [NL., fr. Gr. lethargy, fr. to put to sleep. See Cemetery.]

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


© Webster 1913.

Co"ma, n. [L., hair, fr. Gr. .]

1. Astron.

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

2. Bot.

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 () [L.] Astron., a small constellation north of Virgo; -- called also Berenice's Hair.


© Webster 1913.

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