say it: BID-ur-ek-shuh-nuhl
bidirectional is an adjective meaning "reactive or functioning or allowing movement in two usually opposite directions". It carries one recorded sense.
reactive or functioning or allowing movement in two usually opposite directions
Definitions, synonyms and semantic relations for bidirectional come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.