1. a particular environment or surrounding influence

- there was an atmosphere of excitement

Similar word(s): ambiance, ambience

Definition categories: state, condition, status

2. a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade

Definition categories: quantity

3. the mass of air surrounding the Earth

- there was great heat as the comet entered the atmosphere

Similar word(s): air

Definition categories: location, part, region

4. the weather or climate at some place

- the atmosphere was thick with fog

Definition categories: state, conditions, weather

5. the envelope of gases surrounding any celestial body

Definition categories: object, gas

6. a distinctive but intangible quality surrounding a person or thing

- an atmosphere of defeat pervaded the candidate's headquarters

Similar word(s): air, aura

Definition categories: attribute, quality