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.

2. Chem.

A lune. See Lune.

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.

 

© Webster 1913.

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