Bidirectional may refer to:

Bidirectional, a roadway that carries traffic moving in opposite directions Bi-directional vehicle, a tram or train or any other vehicle that can be controlled from either end and can move forward or backward with equal ease without any need to be turned around Bidirectional text, text containing text in both text directionalities Duplex (telecommunications), communication in both directions Bidirectionalization, a process in computer science Bidirectional railway signalling; see Application of railway signals#Bidirectional signalling Bidirectional learning/process refers to two way learning. In terms of socialization, the process helps both novices and experts learn from each other. Bidirectional LED

See also Two-way (disambiguation)