half-moon

(-mo̵̅o̅n′)

noun

  1. the moon in its first or last quarter phase
  2. anything shaped like a half-moon or crescent

See half-moon in American Heritage Dictionary 4

noun
  1. The moon when only half its disk is illuminated.
  2. Something, such as the lunula of a fingernail, that is shaped like a crescent.

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half-moon

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