torr

American

[tawr] / tɔr /

noun

a unit of pressure, being the pressure necessary to support a column of mercury one millimeter high at 0°C and standard gravity, equal to 1333.2 microbars.

torr British

/ tɔː /

noun

a unit of pressure equal to one millimetre of mercury (133.322 newtons per square metre)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of torr

First recorded in 1945–50; named after E. Torricelli

Example Sentences

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See Examples For:

torr

The pressure of a gas may be expressed in the SI unit of pascal or kilopascal, as well as in many other units including torr, atmosphere, and bar.

From Textbooks ● Feb. 14, 2019

What is the pressure of this gas in atmospheres and torr?

From Textbooks ● Feb. 14, 2019

A typical barometric pressure in Kansas City is 740 torr.

From Textbooks ● Feb. 14, 2019

What volume will the gas have at 30 °C and 750 torr?

From Textbooks ● Feb. 14, 2019

Nearly like r in roar; as, ruadh reddish, righ a king, ruith run, torr a heap, ceartas justice.

From Elements of Gaelic Grammar by Alexander Stewart

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023