prepulse position
1PPI — For the Public Policy Initiative program on the English Wikipedia, see Wikipedia: WikiProject United States Public Policy. PPI may refer to: Contents 1 Biochemistry 2 Indicators and indexes …
2Homosexual orientation — is a sexual orientation. The term is used to refer to an enduring pattern of or disposition to experience sexual, affectional, or romantic attractions primarily to people of the same sex; it also refers to an individual’s sense of personal and… …
3Biology and sexual orientation — Sexual orientation Orientations Asexual · Bisexual · Heterosexual · Homosexual Gender based alternative concepts Androphilia and gynephilia · Human female sexuality  …
