Medical Term:

coma aberration

 

Definition:

  1. the distortion of image formation created when a bundle of light rays enters an optical system not parallel to the optic axis.
  2. in botany, any tuft, as the hairs on a seed, or the greenery on a radish or a pineapple.

Synonym(s): coma3

[G. komē, hair, foliage]

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