Torr - Meaning, Definition & English Examples
A torr is a unit of pressure equal to 1/760 of an atmosphere, commonly used in vacuum measurements. It is named after the physicist Evangelista Torricelli.
Definition:
A unit of pressure equal to 1/760 of standard atmospheric pressure.
Synonyms:
millimeter of mercury, mmHg, pressure unit
Part of Speech:
noun
Antonyms:
vacuum, zero pressure
Common Collocations:
torr measurement, torr scale, torr value
Derivatives:
torricellian, torrs
Usage Tips:
Use "torr" when discussing vacuum pressures or scientific measurements; avoid in everyday contexts.
Common Phrases:
under a torr of pressure, measured in torr
Etymology:
Named after Evangelista Torricelli, inventor of the barometer; from Italian "Torricelli."
Examples:
- 1. The pressure inside the tube was 500 torr.
- 2. Scientists often measure low pressures in torr for accuracy.
- 3. One torr is roughly equivalent to one millimeter of mercury.
- 4. The vacuum chamber reached a pressure below 1 torr.