'Lunule' definitions:
Definition of 'lunule'
From: WordNet
Definition of 'Lunule'
From: GCIDE
- Lunule \Lu"nule\, n. [F., fr. L. lunula, dim. of luna moon.]
- 1. (Anat.) Anything crescent-shaped; a crescent-shaped part or mark; a lunula; a lune. [1913 Webster]
- 2. (Chem.) A lune. See Lune. [1913 Webster]
- 3. (Zool.) (a) A small or narrow crescent. (b) A special area in front of the beak of many bivalve shells. It sometimes has the shape of a double crescent, but is oftener heart-shaped. See Illust. of Bivalve. [1913 Webster]