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retarder

[ ri-tahr-der ]

noun

  1. a person or thing that retards.
  2. Chemistry.
    1. any substance added to rubber to delay or prevent vulcanization.
    2. any substance added to delay a process.
  3. Building Trades. an admixture of concrete or plaster that retards its set.


retarder

/ ɪˈɑːə /

noun

  1. a person or thing that retards
  2. a substance added to slow down the rate of a chemical change, such as one added to cement to delay its setting
“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
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yvlog History and Origins

Origin of retarder1

First recorded in 1635–45; retard + -er 1
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Example Sentences

Examples have not been reviewed.

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

“That’s not character plaster. It’s not like there’s a steel frame under there and then you just put plaster on it and make it look like concrete. That is solid concrete, and as it was poured we had to rush rush rush to get retarder on it to make it look like it was aged and feed buckets of dirt into it. A lot of the land came down to hand-distressing everything with a giant sledgehammer.”

From

If a hot mug has left a mark on your table, Caperton suggests trying Mohawk’s No Blush Plus Retarder.

From

The jury heard this was a result of the “poor condition of the hydraulic retarder”.

From

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

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