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Definition of Lunule

Lunule: 1. The crescent-shaped area at the base of a fingernail or toenail. 2. Any small crescent- or moon-shaped area or structure.
Borrowed from the French lunule, from the Latin lunula, the diminuitive of luna, the moon. Also called the lunula.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/14/2012

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