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Torr
(redirected from Millimeters of mercury)

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torr
a unit of pressure equal to one millimetre of mercury (133.322 newtons per square metre)
torr [tȯr]
(mechanics)
A unit of pressure, equal to 1/760 atmosphere; it differs from 1 millimeter of mercury by less than one part in seven million; approximately equal to 133.3224 pascals.
Torr 

a subsidiary unit of pressure equal to 1/760 of an atmosphere. More precisely, a torr is equal to 101,325 newtons per m2 ÷ 760 = 133.322 newtons per m2, or 133.322 pascals. The torr was named in honor of E. Torricelli; the international symbol is Torr. An equivalent unit, the millimeter of mercury (mm Hg), is used more often in Russian scientific literature.
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The pressure is measured in millimeters of mercury and recorded in two numbers.
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