unidirectional

adjective

uni·​di·​rec·​tion·​al ˌyü-ni-də-ˈrek-sh(ə-)nəl How to pronounce unidirectional (audio)
-dī-
1
: involving, functioning, moving, or responsive in a single direction
a unidirectional microphone
2
: not subject to change or reversal of direction
unidirectionally adverb

Examples of unidirectional in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The unidirectional ceramic bezel, offered in either black or green, is fade and scratch-resistant, complementing the high durability of the case. Matthew Catellier, Forbes.com, 30 Aug. 2025 The newest Tech variant features a 45 mm titanium case, a black dial that absorbs up to 97 percent of light, and a unidirectional 120-click ceramic bezel. Rachel Cormack, Robb Report, 31 July 2025 Rather than a unidirectional flow of medical technologies and services from developed to emerging markets, the modern health economy is defined by interconnectedness. Aman Gupta, Forbes, 4 Mar. 2025 Thunderbolt 3 and 4, for example, reach speeds up to 40 Gbps while the new Thunderbolt 5 reaches a ludicrous 80 Gbps (or up to 120 Gbps when used for unidirectional connections like outputs to displays). Eric Ravenscraft, Wired News, 10 May 2024 See All Example Sentences for unidirectional

Word History

First Known Use

1883, in the meaning defined at sense 1

Time Traveler
The first known use of unidirectional was in 1883

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Cite this Entry

“Unidirectional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unidirectional. Accessed 9 Sep. 2025.

Medical Definition

unidirectional

adjective
uni·​di·​rec·​tion·​al ˌyü-ni-də-ˈrek-shnəl, -dī-, -shən-ᵊl How to pronounce unidirectional (audio)
: involving, functioning, moving, or responsive in a single direction
unidirectionally adverb
Last Updated: - Updated example sentences
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