gibbous Hear it!

gibbous definition

gib·bous (gibəs)

adjective

  1. protuberant; rounded and bulging
  2. designating the moon, a planet, etc. in that phase in which more than half, but not all, of the face reflects sunlight to the earth
  3. humpbacked; kyphotic

Etymology: ME < L gibbosus < gibba: see gib

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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