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.
Researchers also took body mass index (BMI) and waist circumference into consideration. Laura Hensley, Verywell Health, 14 Mar. 2025 The results were comparable and higher resting heart rate readings also correlated with higher body mass index and lower cardiovascular fitness. The Physics Arxiv Blog, Discover Magazine, 13 Mar. 2025 The researchers further noted that the results held true even after accounting for potentially influential factors of physical activity, body mass index (BMI), smoking, alcohol intake, and sun exposure. Tom Gavin, EverydayHealth.com, 4 Mar. 2025 Participants were divided into three groups – lean, overweight, and obese – based on their body mass index (BMI). New Atlas, 25 Feb. 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

Browse Nearby Words

Cite this Entry

“Body mass index.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/body%20mass%20index. Accessed 25 Mar. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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