Meaning & use
torr
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A unit of pressure equal to 1/760 of a standard atmosphere, used especially to measure low pressures such as in a vacuum.
See it in a sentence
The vacuum chamber was pumped down to a pressure of less than one torr.
Scientists calibrated the gauge in torr rather than in standard atmospheres for this experiment.
A note on using this word
Named after the physicist Evangelista Torricelli; used mainly in physics, chemistry, and engineering rather than everyday speech.
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