half-moon definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- the moon in its first or last quarter phase
- anything shaped like a half-moon or crescent
half-moon definition by American Heritage Dictionary
- The moon when only half its disk is illuminated.
- Something, such as the lunula of a fingernail, that is shaped like a crescent.