ambipolar

[ am-bi-poh-ler ]
/ ˌæm bɪˈpoʊ lər /

adjective

working in two directions simultaneously.
Physics, Chemistry. pertaining to both positive and negative ions; applied to both positive and negative ions at the same rate.

British Dictionary definitions for ambipolar

ambipolar
/ (ˌæmbɪˈpəʊlə) /

adjective

electronics (of plasmas and semiconductors) involving both positive and negative charge carriers