Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Lunule
Medically reviewed by Min Clinic Staff | Updated: January 2026
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.