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unidirectional

American  
[yoo-ni-di-rek-shuh-nl, -dahy-] / ˌju nɪ dɪˈrɛk ʃə nl, -daɪ- /

adjective

  1. operating or moving in one direction only; not changing direction.

    a unidirectional flow.


unidirectional British  
/ ˌjuːnɪdɪˈrɛkʃənəl, -daɪ- /

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

Etymology

Origin of unidirectional

First recorded in 1880–85; uni- + directional

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

These defects disrupt the symmetrical nature of the bubbles, enabling them to experience a unidirectional force despite their symmetrical shape.

From Science Daily Mar. 13, 2024

Despite the challenges, foreign investment flows are not unidirectional.

From Reuters Nov. 27, 2023

Given that many of the involved spices originate across the Asian continent—not just South Asia—he suggests it was more of an exchange than a unidirectional flow of culinary traditions.

From Scientific American Jul. 21, 2023

With modeling and experiment, the team is working to get the best spherical compression from its unidirectional driver.

From Science Magazine Feb. 14, 2023

It consists of 372 dual-monopole vertical elements each 19 feet high, backed by a huge reflector screen which makes the antenna substantially unidirectional.

From The Dawn of Amateur Radio in the U.K. and Greece: a personal view by Joly, Norman F.

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