de·​rate (ˌ)dē-ˈrāt How to pronounce derate (audio)
derated; derating; derates

transitive verb

: to lower the rated capability of (something, such as an electrical or mechanical apparatus) because of deterioration or inadequacy

Examples of derate in a Sentence

Recent Examples on the Web In 2014, Jalopnik's Rob Holland tried taking a Model S around the track, only for the battery to derate about three minutes in. Jonathan M. Gitlin, Ars Technica, 6 Sep. 2019 The wheels are then derated to – that is, run at – 50 percent of maximum speed. Charles Platt, WIRED, 1 May 2000

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'derate.' 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

1947, in the meaning defined above

Time Traveler
The first known use of derate was in 1947

Dictionary Entries Near derate

Cite this Entry

“Derate.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2024.

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