FORNICATION By N., Pam M.S. - May 11, 2013 the term applied to the voluntary sexual intercourse between any two people who are not married to each other. The legal definition can vary in different states or countries. FORNICATION: "Joe and Lyn practised fornication before they were married." Related Psychology Terms FREE LOVE ADULTERY CARNAL STATUTORY RAPE MISTRESS GENITAL INTERCOURSE GESTATIONAL SURROGATE SEXUAL BURNOUT FACIES TRANSGENDER Cite this page: N., Pam M.S., "FORNICATION," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/fornication/ (accessed January 19, 2020).