aplanatic Hear it!

aplanatic definition

ap·la·natic (ap′lə nat′ik)

adjective

Optics corrected for spherical aberration and coma: said of a lens

Etymology: < Gr aplanētos, unerring < a-, not + planan: see planet

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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