RETARDER Meaning and
Definition
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A retarder is a device or mechanism used to slow down or impede the progress, speed, or movement of something. It works by applying resistance or opposing force to reduce or delay the forward momentum or velocity of an object, process, or system.
In the context of transportation, a retarder is typically an auxiliary braking system used in conjunction with the primary brakes, such as in trucks, buses, or trains. It is designed to assist in deceleration and to prevent excessive wear and overheating of the main braking components. Retarders can be mechanical, hydraulic, or electrodynamic in nature, and can be activated manually or automatically. They provide an additional means of controlling speed, especially on steep downhill slopes, without relying solely on conventional friction brakes.
In the construction industry, a retarder refers to a substance or admixture added to concrete mixtures to slow down the setting time or hardening process. This allows for extended workability and increased flexibility in terms of placement and finishing. Retarders are often used in hot weather conditions or when complicated structures require more time for construction. Common retarders in this context include various chemical compounds like lignosulfonates, sugar, or organic acids.
Overall, a retarder is a versatile device or ingredient that plays a crucial role in controlling, regulating, and delaying the speed, progress, or setting of different processes or movements in various fields and industries.
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He or that which retards.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for RETARDER
Etymology of RETARDER
The word "retarder" originated from the Late Latin term "retardare", which means "to make slow". In turn, "retardare" is derived from the Latin prefix "re-" (meaning "back" or "again") combined with the verb "tardare" (meaning "to delay" or "to be slow"). The term entered English in the 15th century and was commonly used to refer to something or someone that delays or slows down a process or action. Over time, "retarder" also became associated with substances or devices used to slow down the setting or drying time of materials like paint or concrete, leading to its current usage in various industrial and technical contexts.
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