Torr
Torr
Torr (/tɔːr/; symbol: Torr) is a unit of pressure, defined as 1/760 of one standard atmosphere. It is used in both scientific and medical contexts, particularly in the field of barometry and hemodynamics.
Etymology
The term "Torr" is named after the Italian physicist and mathematician, Evangelista Torricelli, who is known for his work on the principles of the barometer in the 17th century.
Definition
One Torr is exactly equal to 1/760 of a standard atmosphere, which is approximately equal to 133.322368421053 pascals. It is commonly used in the measurement of blood pressure and intraocular pressure.
Related Terms
- Pascal: The SI unit of pressure, equal to one newton per square meter.
- Atmosphere: A unit of pressure defined as 101,325 Pa.
- Barometer: An instrument used to measure atmospheric pressure.
- Hemodynamics: The study of blood flow or the circulation.
- Intraocular pressure: The fluid pressure inside the eye.
See Also
External links
- Medical encyclopedia article on Torr
- Wikipedia's article - Torr
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