hotbox

noun

hot·​box ˈhät-ˌbäks How to pronounce hotbox (audio)
: a journal bearing (as of a railroad car) overheated by friction

Examples of hotbox in a Sentence

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Despite having such a thick cushion, these insoles don't create a hotbox in your shoes. — Shannon Ullman, Verywell Health, 10 Oct. 2024 This bill would mandate hotbox detectors every ten miles, imposing a one-size-fits-all, arbitrary government mandate on technology that has already been adopted successfully by railroads on their own. — The Editors, National Review, 21 Mar. 2023

Word History

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of hotbox was in 1848

Rhymes for hotbox

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“Hotbox.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hotbox. Accessed 25 Mar. 2025.

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Kids Definition

hotbox

noun
hot·​box -ˌbäks How to pronounce hotbox (audio)
: a bearing (as of a railroad car) overheated by friction
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