1. (noun) the crescent-shaped area at the base of the human fingernail

• lunula
• lunule

1. (noun) the crescent-shaped area at the base of the human fingernail

• area
• region

2. (noun) the time at which the Moon is at first or last quarter when half its face is illuminated

• phase of the moon

1. (noun) the time at which the Moon is at first or last quarter when half its face is illuminated

• first quarter
• last quarter