COMA

I. noun Etymology: New Latin, from Greek kōma deep sleep Date: 1646 a state of profound unconsciousness caused by disease, injury, or poison, a state of mental or physical sluggishness ; torpor , II. noun (plural ~e) Etymology: Latin, hair, from Greek komē Date: 1669 a tufted bunch (as of branches, bracts, or seed hairs), the head of a comet consisting of a cloud of gas and dust and usually containing a nucleus, an optical aberration in which the image of a point source is a comet-shaped blur, ~tic adjective