1) Chemical reaction 2) Vehicle braking technology
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https://www.crosswordclues.com/clue/retarder
[chemistry] A retarder is a chemical agent that slows down a chemical reaction. For example, retarders are used to slow the chemical hardening of plastic materials such as wallboard, concrete, and adhesives. Sugar water acts as a retarder for the curing of concrete. It can be used to retard the chemical hardening of the surface, so that the...
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http://en.wikipedia.org/wiki/Retarder_(chemistry)
[mechanical engineering] A retarder is a device used to augment or replace some of the functions of primary friction-based braking systems, usually on heavy vehicles. Friction-based braking systems are susceptible to `brake fade` when used extensively for continuous periods, which can be dangerous if braking performance drops below what is ...
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http://en.wikipedia.org/wiki/Retarder_(mechanical_engineering)
[railroad] In rail transport, a retarder is a device installed in a classification yard used to reduce the speed of freight cars as they are sorted into trains. ==Construction== Each retarder consists of a series of stationary brakes surrounding a short section of each rail on the track that grip and slow the cars` wheels through friction a...
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http://en.wikipedia.org/wiki/Retarder_(railroad)
• (n.) A substance, as potassium bromide, added to a developer to retard its action. • (n.) Any of various devices, as a helix of flat metal strip, introduced into a boiler tube to increase the heating effect of the fire. • (n.) One who, or that which, retards.
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http://thinkexist.com/dictionary/meaning/retarder/
The equipment into which dough is placed and allowed to thaw or slack out. Conditions must be controlled to 36 degrees to 38 degrees and 80 percent relative humidity.
Found on
http://www.encyclo.co.uk/local/20108
An agent used to slow the chemical hardening of gypsum, resins, or impression materials used in dentistry. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
a substance added to cement to prolong the setting time so that the cement can be pumped into place. Retarders are used for cementing in high-temperature formation
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http://www.encyclo.co.uk/visitor-contributions.php
Re·tard'er (re*tär'dẽr)
noun 1. (Steam Boiler) Any of various devices, as a helix of flat metal strip, introduced into a boiler tube to increase the heating effect of the fire.
2. (Photog.) A substance, as potassium bromide, added to a developer to retard its actio...
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http://www.encyclo.co.uk/webster/R/66
Re·tard'er noun One who, or that which, retards.
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http://www.encyclo.co.uk/webster/R/66
Type: Term Pronunciation: rē-tar′dĕr Definitions: 1. An agent used to slow the chemical hardening of gypsum, resins, or impression materials used in dentistry.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=77776
An admixture which extends the setting time of cement paste, and therefore of mixtures such as concrete, mortar, or grout.
Found on
https://www.encyclo.co.uk/local/21066
No exact match found.
