erog·e·nous \ə̇ˈräjənəs, ēˈr-, (ˈ)e|r-\adjective alsoer·o·gen·ic\|erə|jenik\ Etymology: Greek erōs + English -genous, -genic 1.: producing sexual excitement or libidinal gratification when stimulated : sexually sensitive < erogenous zones of the human skin > 2.: of or arousing sexual feelings : sexually stimulating < erogenous pleasure > < an erogenous quality >