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(), 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. (Zol.) (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. スポンサード リンク
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