a. [ L. adulterinus, fr. adulter. ] Proceeding from adulterous intercourse. Hence: Spurious; without the support of law; illegal. [ 1913 Webster ]
When any particular class of artificers or traders thought proper to act as a corporation without a charter, such were called adulterine guilds. Adam Smith. [ 1913 Webster ]
n. An illegitimate child. [ R. ] [ 1913 Webster ]