Answer: lunule

AnswerCrossword Clue
LUNULEHalf-moon at base of a fingernail.
LUNULEWhitish mark at base of a fingernail.
LUNULEFingernail mark
LUNULECrescent-shaped area on a fingernail
lunulesomething shaped like a narrow crescent, as the small, pale area at the base of the fingernail
lunulea small crescent-shaped structure, also LUNULA