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.