nse of sexual abuse, rather than by the ordinary, contemporary, and common meaning of the term. 18 U.S.C.A. §§ 2242, 2252A(b); MCA 45-5.502. *738 Michael Donahoe, Senior Litigator, Federal Defenders of Montana, argued the cause for the de- fendant-appellant, and filed briefs; Anthony R. Gallagher, Federal De