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1520s, from Middle French séduction, from Latin seductionem (nominative seductio), noun of action from past participle stem of seducere (see seduce). Originally with reference to actions or beliefs; sexual sense is from 1769, originally always with women as the objects. Earlier appearance of the word in Middle English with a sense "treason, treachery" probably is a confusion with sedition, which confusion also is found in Old French seducion "treason, betrayal."
in law, the act of a man enticing (without the use of physical force) a previously chaste woman to consent to sexual intercourse. In broader usage, the term refers to any act of persuasion, between heterosexual or homosexual individuals, and excluding the issue of chastity, that leads to sexual intercourse.