Having some
degree of
sex organs from both
sexes. A person with this is said to be an
intersexual.
Hermaphrodite is also used to mean this, but often in a
derogatory manner.
People like this do not have fully developed sex organs of both sexes, due to the way they develop in the body. Usually they tend to be distinctly more of one than of the other.
They are almost always sterile.