1) Biface 2) Bifacial 3) Duplex 4) Two-way 1) Biface 2) Bifacial 3) Inout 
pertaining to a link where the transfer of users' information is possible simultaneously in both directions between two points NOTE 1 - The transmission channel capacity and signalling rate are not necessarily the same in both directions. NOTE 2 - This term should not be used to describe the directions of call set-ups.pertaining to a link where the transfer of user's information is possible simultaneously in both directions between two points NOTE 1 - The transmission channel capacity and signalling rate are not necessarily the same in both directions. NOTE 2 - This term should not be used to describe the direction of call set-ups.
Languages such as Arabic, Hebrew, and Yiddish whose general flow of text proceeds horizontally from right to left, but numbers, English, and other left-to-right language text are written from left to right.
A pin of the component that can both drive and sense the connected signal. The decisions to drive or sense the signal may be made by internal logic (e.g. a microprocessors data bus pins) or be instructed by an externally applied signal. Typically used in Busses
[adj] - reactive or functioning or allowing movement in two usually opposite directions
adjective reactive or functioning or allowing movement in two usually opposite directions
capable of reacting or functioning in two, usually opposite, directions.