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  1. ATMOSPHERE Definition & Meaning - Merriam-Webster

    The meaning of ATMOSPHERE is the gaseous envelope of a celestial body (such as a planet). How to use atmosphere in a sentence.

  2. Atmosphere | Definition, Layers, & Facts | Britannica

    Jan 8, 2026 · Earth's atmosphere is a mixture of nitrogen, oxygen, water vapour, carbon dioxide, and several other minor components.

  3. Atmosphere - Wikipedia

    An atmosphere is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. The name originates from Ancient Greek ἀτμός (atmós) 'vapour, steam' …

  4. What Is the Atmosphere? - Center for Science Education

    The atmosphere is a mixture of gases that surrounds the planet. Without the atmosphere, life on Earth wouldn't be possible.

  5. The Atmosphere | National Oceanic and Atmospheric Administration

    Jul 2, 2024 · The atmosphere is a layer of gas and suspended solids extending from the Earth's surface up many thousands of miles, becoming increasingly thinner with distance but always …

  6. ATMOSPHERE | English meaning - Cambridge Dictionary

    ATMOSPHERE definition: 1. the mixture of gases around the earth: 2. a mixture of gases that surrounds any planet: 3. the…. Learn more.

  7. ATMOSPHERE Definition & Meaning | Dictionary.com

    ATMOSPHERE definition: the gaseous envelope surrounding the earth; the air. See examples of atmosphere used in a sentence.

  8. Atmosphere - National Geographic Society

    One of the main components of Earth’s interdependent physical systems is the atmosphere. An atmosphere is made of the layers of gases surrounding a planet or other celestial body.

  9. atmosphere noun - Definition, pictures, pronunciation and usage …

    Definition of atmosphere noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  10. Atmosphere - definition of atmosphere by The Free Dictionary

    the outermost part of the earth’s permanent atmosphere, beyond the stratosphere, composed of heavily ionized molecules. It extends from about 50 to 250 miles above the surface of the earth.