operating or moving in one direction only; not changing direction: a unidirectional flow.
Origin of unidirectional
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for unidirectional
Historical Examples of unidirectional
Two support rods and two cantilever springs were needed in place of the one in unidirectional scarificators.
In some cases the alternating high-tension current is rectified and supplied as a unidirectional current to lamps in series.
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
Online Etymology Dictionary, © 2010 Douglas Harper