WordNet
n. those characteristics (both anatomical and psychological) that are strongly associated with one sex relative to the other [syn: sex character]
Usage examples of "sex characteristic".
It was the same palpitating horror that at first he'd taken for a secondary sex characteristic in his original captors during that dizzy hegira through the monkey-puzzle forest and across the industrial plain.
Since a deep voice was not, on Ss'pode, a secondary sex characteristic of the male, the sex of casual acquaintances - and of public figures as well - could easily be disguised, and always was.
The talent came upon him without warning when he was twelve, as if it were a secondary sex characteristic accompanying puberty, manifested in modest ways at first, then increasingly strong and demanding.