How to sign: a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
Similiar / Same: standard atmosphere, atm, standard pressure
Categories: pressure unit
Within this category: STP
How to sign: a particular environment or surrounding influence
"there was an atmosphere of excitement";
Similiar / Same: ambiance, ambience
Within this category: genius loci, gloom, miasma, spirit, vibe
How to sign: the mass of air surrounding the Earth
"there was great heat as the comet entered the atmosphere"; "it was exposed to the air";
Similiar / Same: air
Within this category: airspace