@freemo @yarra @a7 i'm not talking about coitus. i'm talking about the fusion of unalike gametes. medical dictionaries will naturally have an anatomical take rather than a broader one. which is, of course, that sex refers to gametes. if sex didn't refer to gametes, and just genitals, then it wouldn't be meaningful to call plants male and female. it is possible to have dimorphic gametes without dimorphic sexes, but not vise versa.