het·er·ot·ri·chous \|hed.ə|rä.trə̇kəs\adjective Etymology: probably from New Latin heterotrichus : having the thallus differentiated into a prostrate portion and an upright or projecting system < many algae are heterotrichous > • het·er·ot·ri·chy\ˌ ̷ ̷ ̷ ̷ˈrä.trə̇kē\noun-es