unidirectional

[yoo-ni-di-rek-shuh-nl, -dahy-]

Origin of unidirectional

First recorded in 1880–85; uni- + directional
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Examples from the Web for unidirectional

Historical Examples of unidirectional


British Dictionary definitions for unidirectional

unidirectional

adjective
  1. having, moving in, or operating in only one direction
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unidirectional
adj.

1883, from uni- + directional (see direction).

Online Etymology Dictionary, © 2010 Douglas Harper