atm
1
4.0
- noun
- /ˈeɪ ti ɛm/
- Specialized
:
atm
- In chemistry experiments, you often need to measure reactions at one atm of pressure.
- pressure of 1 atm
- 1 atm
- 10 atm
Examples
-
Pressure increases by 1 atm for every 10 meters of depth.
Academic text (1994) -
ES1 was able to grow at 878.7 atm, and ES4 at 661.5 atm.
Academic text (1994) -
Atmospheric pressure within the dome, one ATM.
-
When raised at 86 Celsius, M. jannaschi grew three times faster at 750 atm than at 8 atm.
Academic text (1994) -
The deepest part of the known biosphere is 11,000 meters deep, and pressure there is 1,100 atm, or 16,180 pounds per square inch.
Academic text (1994) -
Pressure increases by 1 atm for every 10 meters of depth.
-
The weather report indicated that the air pressure is currently at 1 atm.
Synonyms
12
6.8
A unit of pressure equal to normal air pressure at sea level
1
6.1
The usual air pressure at sea level used for checking and calibrating instruments
The pressure at sea level used as a reference equal to a 760 mm column of mercury at zero Celsius
Surface Forms
Etymology
Atm comes from the word atmosphere, where atmos- means 'vapour' and -sphere means 'ball', because it names the air that surrounds the Earth. So an atm is a unit that measures the pressure of that air, and 1 atm is the normal pressure at sea level.