# BMI

Source: https://englishreference.com/word/bmi
Updated: 2026-08-08

## Senses

### 1. body mass index

noun · CEFR B2 · Technical

Stands for Body Mass Index. It is a number calculated from your height and weight to check if you are a healthy size.

For teachers: Abbreviation for Body Mass Index. A value derived from the mass and height of a person, used as a heuristic proxy for body fat percentage.

- The doctor calculated my BMI to see if I was in the healthy range.
- Public health officials often use BMI as a broad indicator of population health, despite its limitations in accounting for muscle mass.

Usage: Usually used as an uncountable noun or with a possessive adjective like 'my BMI'.

### 2. brain-machine interface

noun · CEFR C1 · Technical

Stands for Brain-Machine Interface. This is technology that lets a brain communicate directly with a computer or robot.

For teachers: Abbreviation for Brain-Machine Interface. A direct communication pathway between an enhanced or wired brain and an external device.

- Scientists are developing a BMI to help paralyzed people control robotic arms.
- The latest research in BMI technology focuses on reducing latency between neural firing and the execution of digital commands.

Usage: Commonly used in neuroscience and cybernetics contexts.

## Examples

- Your doctor checks your BMI every year.
- The nurse calculated his BMI to see if he needed to change his diet.
- While BMI is a useful screening tool for population health trends, it fails to distinguish between muscle mass and fat in individual athletes.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.