Definition of "unidirectional" []

• Moving or operating in one direction only: a unidirectional 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.

• "* Built-in unidirectional microphone with acoustic noise cancellation"
• "Both of these movements for "social justice" were unidirectional, that is, movement in one direction only: empowering people of color at the expense of ethnic European whites and women at the expense of men."
• "Both of these movements for “social justice†were unidirectional, that is, movement in one direction only: empowering people of color at the expense of ethnic European whites and women at the expense of men."