In the civil law . A man who was twice married; one who at different times and successively has married two wives. 4 Inst 88. One who has two wives living. One who marries a widow. Bigamns sen trigamns, etc., est qni di- versis temporibns et successive dnas sen tres uxores habuit. 4 Inst 88. A bigamus p or trigamus, etc., is one who at different