body mass index

bod·y mass in·dex

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Definitions of body mass index words

singular noun body mass index A person's body mass index is a measurement that represents the relationship between their weight and their height. 3
noun body mass index an index used to indicate whether a person is over- or underweight. It is obtained by dividing a person's weight in kilograms by the square of their height in metres. An index of 20–25 is normal 3
noun body mass index a meaurement used to estimate body fat and classify persons as being underweight, overweight, or normal: it is calculated by dividing weight (in kilograms) by the square of height (in meters) 3
noun body mass index an index for assessing overweight and underweight, obtained by dividing body weight in kilograms by height in meters squared: a measure of 25 or more is considered overweight. Abbreviation: BMI. 1
noun body mass index measure of body fat 1
noun body mass index a statistical measure of the weight of a person scaled according to height, used to estimate if a person is underweight or overweight. BMI units are defined as ≈. 0

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A common word. It’s meaning is known to most children of preschool age. About 95% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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