"Sodomy is also contraception, a notion based on texts like Gen. 1:28 and Gen. 38:6-10. The whole rabbinical commentary tradition certainly did. See Jeremy Cohen, "Be Fertile and Increase, Fill the Earth and Master It: The Ancient and Medieval Career of a Biblical Text" (1989). In any event, they are all forms of contraception, which is defined as the "use of any means of preventing sexual intercourse from resulting in conception."--The Oxford Companion to Law, ed. D.M. Walker (1980), s.v. "Contraception.""