In zoology, an animal which can produce both sperm and ova is a hermaphrodite. As an example, most earthworms are hermaphrodites. A simultaneous hermaphrodite has both sets of sex organs throughout life. A sequential hermaphrodite has ovaries at first, replaced by a testis later, or the other way round.
With people, the term hermaphrodite is not correct, because true functioning hermaphrodites are not possible in humans. What sometimes happens is errors in development which lead to intersex persons. A definition of intersex is :
- "... individuals of a bisexual species that have characteristics intermediate between the male and female".