n.
Function: noun
Inflected Form: plural co · mae \ - ˌ m ē , - ˌ m ī \
Etymology: Latin, hair, from Greek kom ē
Date: 1669
1 : a tufted bunch (as of branches, bracts, or seed hairs)
2 : the head of a comet consisting of a cloud of gas and dust and usually containing a nucleus
3 : an optical aberration in which the image of a point source is a comet-shaped blur
– co · mat · ic \ k ō - ' ma-tik \ adjective