1. Vaulted or arched; resembling a fornix. [L. fornicatus, arched, fr. fornix, vault, arch] 2. To have sexual intercourse. [see fornication]
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for·ni·cate 'fȯr-nə-.kāt vb, -cat·ed; -cat·ing vi to commit fornication vt to commit fornication with
for·ni·ca·tor -.kāt-ər n
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for·ni·cate (forґnĭ-kāt) [L. fornicatus arched] shaped like an arch.Medical dictionary. 2011.