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   co·ma

   /ˈkōmə/

   noun

   • 1. a diffuse cloud of gas and dust surrounding the nucleus of a comet.
   • ▪ aberration which causes the image of an off-axis point to be flared like a comet.

   Word Origin early 17th century (in botanical sense ‘tuft of hairs on seed’): via Latin from Greek komē ‘hair of the head’.

   Scrabble Points: 8

   • C

     3

   • O

     1

   • M

     3

   • A

     1

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