Definition of "bidirectional" [bidirectional]

• Moving or operating in two usually opposite directions: bidirectional data flow; a bidirectional microphone. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Stage II, known as the bidirectional Glenn or the hemiFontan, typically occurs within four to six months of birth."
• ""Whereas shortwave radio during the Cold War was very unidirectional ... with the Internet these technologies are by definition bidirectional, meaning that it gives an opportunity for citizens within these states to also communicate amongst themselves and with the outside world.""
• "Two-way radio communications enhancement systems commonly referred to as bidirectional amplifiers or repeaters are replacing the firefighter telephones in many jurisdictions to improve fire ground communications within a building."