Sexologists have created numerous terms for preferential attraction to transgender people. John Money and Malgorzata Lamacz proposed the term gynemimetophilia to refer to a sexual preference for male-assigned people who look like, act like, or are women, including crossdressed men and trans women. They also proposed the term andromimetophilia to describe a sexual attraction to female-assigned people who look like, act like, or are men.
Ray Blanchard and Peter Collins proposed the term gynandromorphophilia, while Martin S. Weinberg and Colin J. Williams proposed the term men sexually interested in transwomen (MSTW) to describe the phenomenon among men.