Definition of Torr

Babylon English
torr
n. unit of pressure equal to 133.32 pascals

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Torr definition was found in categories: Computer & Internet(1)  Language, Idioms & Slang(2)  Government(1)  Science & Technology(2)  Encyclopedia(1)  

Torr Definition from Computer & Internet Dictionaries & Glossaries

Integrated Circuit Terminology
Torr
the pressure exerted by 1mm of mercury, Hg. Standard atmospheric pressure is 760 torr.


Torr Definition from Language, Idioms & Slang Dictionaries & Glossaries

WordNet 2.0
torr

Noun
1. a unit of pressure equal to 0.001316 atmosphere; named after Torricelli
(synonym) millimeter of mercury, mm Hg
(hypernym) pressure unit

hEnglish - advanced version
torr

torr
n : a unit of pressure equal to 0.001316 atmosphere; named after torricelli [syn: millimeter of mercury, mm hg]





Torr Definition from Government Dictionaries & Glossaries

UK Post Codes and Counties
Torr
County:  Devon
Post Code: PL8


Torr Definition from Science & Technology Dictionaries & Glossaries

General Chemistry Glossary
torr (Torr; mm Hg)
Compare with barometer and pressure .A unit of pressure , defined so that 760 Torr is exactly 1 atmosphere . A Torr is equivalent to 1 mm Hg on barometer readings taken at 0°C; at other temperatures, the conversion from mm Hg to Torr is approximately p(Torr) = p(mm Hg) × (1 - 1.8×10-4t), where t is in °C.

Rubber Glossary
Torr
The unit of pressure used in vacuum measurement; equal to 1/760 of a standard atmosphere, and for practical purposes, is equivalent to one millimeter of Mercury (mmHg).


Torr Definition from Encyclopedia Dictionaries & Glossaries

Wikipedia English - The Free Encyclopedia
Torr
For the standard botanical author abbreviation Torr., see John Torrey.
The torr (symbol: Torr) is a non-SI unit of pressure defined as 1/760 of an atmosphere. It was named after Evangelista Torricelli, an Italian physicist and mathematician who discovered the principle of the barometer in 1644.

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John Torrey
John Torrey (August 151796 –  March 101873) was an American botanist.

Torrey was born in New York. When he was 15 or 16 years of age his father received a prison appointment at Greenwich, and there he made the acquaintance of Amos Eaton, a pioneer of natural history studies in America. He thus learned the elements of botany, as well as something of mineralogy and chemistry. In 1815 he began the study of medicine, qualifying in 1818. In the following year he issued his Catalogue of Plants growing spontaneously within Thirty Miles of the City of New York, and in 1824 he issued the first and only volume of his Flora of the Northern and Middle States. In the same year he obtained the chair of chemistry and geology at West Point military academy, and three years later the professorship of chemistry and botany in the College of Physicians and Surgeons, New York.


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