bidirectional
bi·di·rec·tional
adjective
1.
reactive or functioning or allowing movement in two usually opposite directions
Origin
From bi- + directional.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.