brown fat

noun

: a mammalian heat-producing tissue occurring especially in human fetuses and newborn infants and in hibernating animals

called also brown adipose tissue

Examples of brown fat 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.
Some studies suggest that CBD may help convert white fat into brown fat, which is more metabolically active and helps burn calories-though more human research is needed to confirm this effect. Tribune Content Agency, Mercury News, 30 Apr. 2025 But diets or drugs don’t focus on brown fat levels, or fat around the heart. Bethany Brookshire, Scientific American, 27 Mar. 2025 At slower vertical climbing rates, calorie burn rates were higher than normal at 32 degrees, because the subjects were spending extra energy keeping themselves warm by shivering and activating their brown fat. Alex Hutchinson, Outside Online, 14 Feb. 2025 Brown adipose tissue, also known as brown fat, is a particular type of fat that can produce heat and increase the amount of calories the body burns.12 6. Lindsey Desoto, Rd, Ld, Verywell Health, 29 Jan. 2025 See All Example Sentences for brown fat

Word History

First Known Use

1902, in the meaning defined above

Time Traveler
The first known use of brown fat was in 1902

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Cite this Entry

“Brown fat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brown%20fat. Accessed 10 May. 2025.

Medical Definition

brown fat

noun
: a mammalian heat-producing tissue occurring especially in human fetuses and newborn infants and in hibernating animals

called also brown adipose tissue

Last Updated: - Updated example sentences
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