Meaning & use
mmHg
Last updated
millimeters of mercury, a unit used to measure pressure, most commonly blood pressure and atmospheric pressure.
See it in a sentence
A normal resting blood pressure reading is around 120/80 mmHg.
Atmospheric pressure at sea level is about 760 mmHg.
A note on using this word
Written with a lowercase mm and a capital Hg, reflecting the chemical symbol for mercury.
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