hot flash

noun

: a sudden brief flushing and sensation of heat caused by dilation of skin capillaries usually associated with menopausal endocrine imbalance

called also hot flush

Examples of hot flash 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.
There's a new trend gaining attention online that has people taking a combination of antihistamines and Pepcid to try to help reduce menopause symptoms such as hot flashes, but experts warn that as with many internet trends, it's not entirely rooted in reality. Gma Team, ABC News, 28 Apr. 2026 Symptoms of menopause include hot flashes, sleep issues, joint and muscle discomfort, night sweats, forgetfulness, moodiness, and irritability. Laura Schober, Health, 23 Apr. 2026 On Friday, April 17, the 44-year-old comedian shared on Instagram that there is a shortage of HRT estrogen patches, which are used to treat symptoms of perimenopause and menopause, including hot flashes and night sweats. Desiree Anello, PEOPLE, 20 Apr. 2026 Most women expect hot flashes to be the first sign something is changing. Allison Palmer, Sacbee.com, 1 Apr. 2026 See All Example Sentences for hot flash

Word History

First Known Use

1907, in the meaning defined above

Time Traveler
The first known use of hot flash was in 1907

Browse Nearby Words

Cite this Entry

“Hot flash.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hot%20flash. Accessed 2 May. 2026.

Medical Definition

hot flash

noun
: a sudden brief flushing and sensation of heat caused by dilation of skin capillaries usually associated with menopausal endocrine imbalance

called also hot flush

More from Merriam-Webster on hot flash

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster