Fôr'ni-cā'tion, n.
n. [Lat. fornicatio, Fr. fornication, Pr. fornicatio, Sp. fornicacion, It. fornicazione.]
Sense 1. The incontinence or lewdness of an unmarried person, male or female; also, the criminal conversation of a married man with an unmarried woman.
Sense 2. (Script.) (a.) Adultery. (b.) Incest. (c.) Idolatry.
Sense 3. (Arch.) An arching; the forming of a vault.