Princeton's WordNet

1. atmosphere, ambiance, ambience(noun)

   a particular environment or surrounding influence

   "there was an atmosphere of excitement"

2. standard atmosphere, atmosphere, atm, standard pressure(noun)

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

3. atmosphere, air(noun)

   the mass of air surrounding the Earth

   "there was great heat as the comet entered the atmosphere"; "it was exposed to the air"

4. atmosphere, atmospheric state(noun)

   the weather or climate at some place

   "the atmosphere was thick with fog"

5. atmosphere(noun)

   the envelope of gases surrounding any celestial body

6. air, aura, atmosphere(noun)

   a distinctive but intangible quality surrounding a person or thing

   "an air of mystery"; "the house had a neglected air"; "an atmosphere of defeat pervaded the candidate's headquarters"; "the place had an aura of romance"

Kernerman English Learner's Dictionary

1. atmosphere(noun)ˈætməsfˌɪr

   the mood of a place

   a relaxed atmosphere; an atmosphere of trust

2. atmosphereˈætməsfˌɪr

   the air around the earth

   the earth's atmosphere

Wiktionary

1. atmosphere(Noun)

   The gases surrounding the Earth or any astronomical body.

2. atmosphere(Noun)

   The air in a particular place.

3. atmosphere(Noun)

   The mood or feeling in a situation.

4. atmosphere(Noun)

   A unit of measurement for pressure (symbol: atm)

Origin: From atmosphaera, from ἀτμός + σφαῖρα.

Webster Dictionary

1. Atmosphere(noun)

   the whole mass of aeriform fluid surrounding the earth; -- applied also to the gaseous envelope of any celestial orb, or other body; as, the atmosphere of Mars

2. Atmosphere(noun)

   any gaseous envelope or medium

3. Atmosphere(noun)

   a supposed medium around various bodies; as, electrical atmosphere, a medium formerly supposed to surround electrical bodies

4. Atmosphere(noun)

   the pressure or weight of the air at the sea level, on a unit of surface, or about 14.7 Ibs. to the sq. inch

5. Atmosphere(noun)

   any surrounding or pervading influence or condition

6. Atmosphere(noun)

   the portion of air in any locality, or affected by a special physical or sanitary condition; as, the atmosphere of the room; a moist or noxious atmosphere

U.S. National Library of Medicine

1. Atmosphere

   The gaseous envelope surrounding a planet or similar body. (From Random House Unabridged Dictionary, 2d ed)

The Standard Electrical Dictionary

1. Atmosphere

   (a) A term applied to the atmospheric pressure as a practical unit of pressure equal to 15 lbs. to the square inch as generally taken. It is really about 14.7 lbs. per square inch, or 1,033 grams per square centimeter. (b) Air, q. v.

• atmosfeerAfrikaans
• جَوArabic
• атмосфераBulgarian
• atmosferaPortuguese (BR)
• ovzdušíCzech
• die AtmosphäreGerman
• luft; atmosfæreDanish
• ατμόσφαιραGreek
• atmósferaSpanish
• atmosfäärEstonian
• هوا؛ جوFarsi
• ilmakehäFinnish
• atmosphèreFrench
• אַטמוֹספֵירָהHebrew
• वायुमण्‍डलHindi
• atmosferaCroatian
• légkörHungarian
• udaraIndonesian
• lofthjúpur; andrúmsloftIcelandic
• atmosferaItalian
• 大気Japanese
• 기후Korean
• atmosferaLithuanian
• atmosfēraLatvian
• atmosferaMalay
• atmosfeerDutch
• atmosfære, luftNorwegian
• atmosferaPolish
• هوا؛ جوPersian
• هواPashto
• atmosferaPortuguese
• atmos­ferăRomanian
• атмосфераRussian
• ovzdušieSlovak
• atmosferaSlovenian
• vazduhSerbian
• atmosfärSwedish
• ชั้นบรรยากาศThai
• atmosferTurkish
• 大氣Chinese (Trad.)
• атмосфераUkrainian
• فضاUrdu
• lớp khí quyểnVietnamese
• 大气Chinese (Simp.)