The crescent-shaped whitish area at the base of a fingernail. The lunula is most visible on the thumb and is often less noticeable on other fingers.
A crescent-shaped structure or marking, especially in anatomy or biology. The lunula of the moon jellyfish is a distinctive feature that helps in its identification.
A crescent-shaped ornament or protective amulet, especially those from the European Bronze Age or worn by girls in ancient Rome. The ornate gold lunula discovered in the grave dates back to the Early Bronze Age.