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Word of the Day Tuesday, June 9, 2026

diaphragm

/dɪˈæɡrəm/ noun · British & US
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What does diaphragm mean?

noun

A dome-shaped muscle that separates the chest cavity from the abdominal cavity, and plays a key role in breathing. It is a thin, membranous structure that contracts and relaxes to expand and deflate the lungs.

Example

"The diaphragm is a crucial muscle for singers, as it helps to control the flow of air and produce a rich, resonant sound."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for diaphragm

Rhymes with diaphragm

Etymologically related