in·tex·ine \ˈin.ˌtekˌs]ēn, ]īn\noun orin·tex·tine\-kˌst]\ (-s) Etymology:intexine from German, from int- (from Latin intus within) + exine; intextine alteration (influenced by extine) of intexine : the inner membrane of the exine when this exists in two layers