Air, mixture of gases comprising the Earth’s atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are variable in both …

The meaning of AIR is the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; also : the equivalent mix of gases on another celestial object …

The atmosphere of Earth consists of a layer of mixed gas (commonly referred to as air) that is retained by gravity, surrounding the Earth 's surface. It contains variable quantities of …

Oct 1, 2024 · Air is the invisible mixture of gases that surrounds Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.

1. Of or relating to the air or the movement of air: an air tube. 2. Existing or living in the air; aerial. 3. Powered by compressed air: an air horn. 4. Containing or inflated by air.

AIR meaning: 1. the mixture of gases that surrounds the earth and that we breathe: 2. the space above the…. Learn more.

Definition of air noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Air definition: An atmospheric movement; a breeze or wind.

Air is a mixture of gases, most of which are naturally occurring. Air also contains a significant amount of human-made air pollutants, including some that are not safe to breathe and some …

The terms air or the air is used generally to refer to the sky or open space outside. Real-life example: Airplanes and helicopters are designed to fly in the air, meaning the empty space …