Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,903,399,942 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

torr
(redirected from Torr (unit))

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
torr
[tôr]
Etymology: Evangelista Torricelli, Italian physicist, 1608-1647
a unit of pressure equal to 1333.22 dynes/cm2, or 1.33322 millibars. One torr is the pressure required to support a column of mercury 1 mm high when the mercury is of standard density and subjected to standard acceleration. These standard conditions are 0° C and 45° latitude, where the acceleration of gravity is 980.6 cm/sec2. In reading a mercury barometer at other temperatures and latitudes, corrections commonly exceeding 2 torr may be required to compensate for the thermal expansion of the measuring scale used.

torr [tor]
a unit of pressure equal to one millimeter of mercury (mm Hg), or 133.3 pascals.

torr (tōr),
n a unit of pressure equivalent to 0.001316 atmosphere; named after the physicist Torricelli. Also called
mm Hg.


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Add definition
Mentioned in?   Medical browser?   Full browser?
 
 
 
Medical Dictionary
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.