retarder
Americannoun
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a person or thing that retards.
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Chemistry.
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any substance added to rubber to delay or prevent vulcanization.
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any substance added to delay a process.
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Building Trades. an admixture of concrete or plaster that retards its set.
noun
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a person or thing that retards
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a substance added to slow down the rate of a chemical change, such as one added to cement to delay its setting
Etymology
Origin of retarder
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.
They must also utilize a Class 1 vapor retarder with joints overlapping 6 inches, that extends up the stem wall and that is sealed from the exterior.
From Seattle Times • Aug. 25, 2022
The inquest jury heard the French report concluded the brake failed as the pad had been "completely destroyed by excessive heating" due to the "poor condition of the hydraulic retarder".
From BBC • Nov. 22, 2017
In raw form its principal use is as a retarder in cement, preventing it from setting too rapidly.
From Time Magazine Archive
The accelerator and retarder are thrown into action by electromagnets, controlled by a “detector” mounted on the same shaft.
From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" by Various
Secondly, it acts as a retarder of fermentation by limiting the supply of atmospheric oxygen, and thus preventing, as we have just seen, aerobic fermentation.
From Manures and the principles of manuring by Aikman, Charles Morton
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
