Lunate definitions

-nā'tĭd
Shaped like a crescent.
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A small stone artifact, probably an arrowhead, with a blunt straight edge and a sharpened, crescent-shaped back, especially characteristic of the Mesolithic Period.
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Crescent-shaped.
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Shaped like a crescent.

A lunate beak.

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(archaeology) A small stone artifact, probably an arrowhead, with a blunt straight edge and a sharpened, crescent-shaped back, especially characteristic of the Mesolithic Period.
noun
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Origin of lunate

Latin lūnātus past participle of lūnāre to bend like a crescent from lūna moon leuk- in Indo-European roots