Category:Coma

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

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

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

1. (Astron.)

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

2. (Bot.)

Defn: 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.