Copula
1. In anatomy, a narrow part connecting two structures, e.g., the body of the hyoid bone.
2. A swelling that is formed during the early development of the tongue by the medial portion of the second branchial arch; it is overgrown by the hypobranchial eminence and is not present in the adult tongue.
3. Obsolete term for zygote.
Origin: L. A bond, tie
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