refractory period

noun

: the brief period immediately following the response especially of a muscle or nerve before it recovers the capacity to make a second response

called also refractory phase

Examples of refractory period in a Sentence

Recent Examples on the Web
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.
The refractory period for knuckle cracking is about 20 minutes. Dr. Roshini Raj, Health, 1 Feb. 2023 For example, scientists don’t even know for sure why there is a refractory period. Benjamin Plackett, Discover Magazine, 28 Jan. 2021

Word History

First Known Use

circa 1880, in the meaning defined above

Time Traveler
The first known use of refractory period was circa 1880

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Cite this Entry

“Refractory period.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/refractory%20period. Accessed 5 Sep. 2025.

Medical Definition

refractory period

noun
: the brief period immediately following the response especially of a muscle or nerve before it recovers the capacity to make a second response

called also refractory phase

see absolute refractory period, relative refractory period

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