Definition of torr
: a unit of pressure equal to 1⁄760 of an atmosphere (about 133.3 pascals)
Origin and Etymology of torr
First Known Use: 1949See Words from the same year
Medical Definition of torr
: a unit of pressure equal to 1⁄760 of an atmosphere or about 0.019 pounds per square inch or about 133.3 pascals
Seen and Heard
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