half–moon

noun \ˈhaf-ˌmün, ˈhäf-\

: the moon when only half of it can be seen

: something that is shaped like a half-moon

Full Definition of HALF-MOON

: the moon when half its disk appears illuminated

: something shaped like a crescent

: the lunule of a fingernail

— half–moon adjective

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15th century

Medical Dictionary

noun \-ˌmün\

: lunula a

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