unidirectional
adjective
uni·di·rec·tion·al
ˌyü-ni-də-ˈrek-sh(ə-)nəl 
-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
The sleek timepiece features a 41 mm steel case, a unidirectional rotating bezel in black ceramic, a screw-in crown, and a helium escape valve at 11 o’clock.
—
Rachel Cormack, Robb Report, 16 Aug. 2023
Most annual reviews are unidirectional from boss to subordinate.
—Expert Panel®, Forbes, 6 Feb. 2023
Its unidirectional bezel is made with a Carbonium finish containing upcycled fibers from airplane fuselage offcuts, which cuts the environmental impact of other carbon composites used in watchmaking down by about 40 percent, according to the company.
—Paige Reddinger, Robb Report, 25 May 2023
Like all great sports watches, the 200 Solargraph is water resistant to 200 meters, with a unidirectional bezel to time dives.
—Robb Report Studio, Robb Report, 15 Feb. 2023
With modeling and experiment, the team is working to get the best spherical compression from its unidirectional driver.
—Bydaniel Clery, science.org, 15 Feb. 2023
Second, the moral arc of history is not always unidirectional.
—Razib Khan, Discover Magazine, 29 Jan. 2012
His account suggests a unidirectional process of unsettling that emanates from the artist into the world.
—Lucie Elven, The New Yorker, 5 Jan. 2023
The round watch featuring unidirectional bezel and blue dial with date window at 4 o’clock and stainless steel case is on sale for just $219.99, more than 40% off its original price.
—Billboard Staff, Billboard, 21 Nov. 2022
See More
Rachel Cormack, Robb Report, 16 Aug. 2023
Most annual reviews are unidirectional from boss to subordinate.
—Expert Panel®, Forbes, 6 Feb. 2023
Its unidirectional bezel is made with a Carbonium finish containing upcycled fibers from airplane fuselage offcuts, which cuts the environmental impact of other carbon composites used in watchmaking down by about 40 percent, according to the company.
—Paige Reddinger, Robb Report, 25 May 2023
Like all great sports watches, the 200 Solargraph is water resistant to 200 meters, with a unidirectional bezel to time dives.
—Robb Report Studio, Robb Report, 15 Feb. 2023
With modeling and experiment, the team is working to get the best spherical compression from its unidirectional driver.
—Bydaniel Clery, science.org, 15 Feb. 2023
Second, the moral arc of history is not always unidirectional.
—Razib Khan, Discover Magazine, 29 Jan. 2012
His account suggests a unidirectional process of unsettling that emanates from the artist into the world.
—Lucie Elven, The New Yorker, 5 Jan. 2023
The round watch featuring unidirectional bezel and blue dial with date window at 4 o’clock and stainless steel case is on sale for just $219.99, more than 40% off its original price.
—Billboard Staff, Billboard, 21 Nov. 2022
See More
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unidirectional.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1883, in the meaning defined at sense 1
Phrases Containing unidirectional
Dictionary Entries Near unidirectional
Cite this Entry
“Unidirectional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unidirectional. Accessed 21 Sep. 2023.
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Medical Definition
unidirectional
adjective
uni·di·rec·tion·al
ˌyü-ni-də-ˈrek-shnəl, -dī-, -shən-ᵊl
: involving, functioning, moving, or responsive in a single direction
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