Meaning of “body mass index” in the English Dictionary

british dictionary

"body mass index" in British English

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body mass indexnoun [ C ]

uk /ˈbɒd.i ˌmæs ˌɪn.deks/ us /ˈbɑː.di ˌmæs ˌɪn.deks/ abbreviation BMI

a measurement of a person's weight in relation to their height, used to find out if they are too fat:

Obesity for adults was defined as a body mass index of 30 or greater.

(Definition of “body mass index” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)