In organisms that reproduce sexually, being the gamete that is larger and less motile than the other corresponding gamete (the male gamete) of the same species. The egg cells of higher animals and plants are female gametes.
Possessing or being a structure that produces only female gametes. The ovaries of humans are female reproductive organs. Female flowers possess only carpels and no stamens.
Having the genitalia or other structures typical of a female organism. Worker ants are female but sterile.