biramous

形容词 biramous:

1. resembling a fork; divided or separated into two branches
   同义词：bifurcate, branched, forked, fork-like, forficate, pronged, prongy

bi.ra.mous

adj.（形容词）
Consisting of or having two branches, as the appendages of an arthropod.
两支的：组成或有两肢的，如节肢动物的附属物