body mass index

noun

: a measure of body fat that is the ratio of the weight of the body in kilograms to the square of its height in meters

Examples of body mass index in a Sentence

A person with a body mass index of more than 30 is considered to be obese.
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 Withings Body Scan will give Dad detailed insights into his body mass index (BMI), heart rate and nerve health. Nora Colomer May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 4 June 2025 People who regularly drink hot tea might have lower waist sizes and body mass index (BMI), but other lifestyle habits also play a role. Cristina Mutchler, Verywell Health, 16 May 2025 For starters, obesity—defined by the Center for Disease Control and Prevention as having a body mass index greater than 30—is prevalent in more than 2 out of every 5 adult Americans today. Kevin Reutenauer, Hartford Courant, 23 Apr. 2025 His resulting body mass index would classify him as overweight. Brett Samuels, The Hill, 13 Apr. 2025 See All Example Sentences for body mass index

Word History

First Known Use

1983, in the meaning defined above

Time Traveler
The first known use of body mass index was in 1983

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Cite this Entry

“Body mass index.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/body%20mass%20index. Accessed 12 Jun. 2025.

Kids Definition

body mass index

noun
: a measure of body fat that is the ratio of the weight of the body in kilograms to the square of its height in meters

Medical Definition

body mass index

noun
: a measure of body fat that is the ratio of the weight of the body in kilograms to the square of its height in meters
a body mass index in adults of 25 to 29.9 is considered an indication of overweight, and 30 or more an indication of obesity
abbreviation BMI

called also Quetelet index

More from Merriam-Webster on body mass index

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