1. A small needle-shaped body. 2. Accessory reproductive structure in male nematodes; useful in identification of species. [L. spiculum, dim. of spica, or spicum, a point]
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spic·ule 'spik-(.)yü(ə)l n a minute slender pointed usu. hard body (as of bone)
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n.
a small splinter of bone.
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spic·ule (spikґūl) [L. spiculum] a sharp, needle-like body. spicular adjMedical dictionary. 2011.