AIR Definition Meaning - Merriam-Webster 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 (such as a planet)
Air | Composition, Oxygen, Nitrogen | Britannica 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 space and time
Air - Simple English Wikipedia, the free encyclopedia Air is a mixture of many gases and tiny dust particles It is the clear gas in which living things live and breathe It has an indefinite shape and volume It has mass and weight, because it is matter The weight of air creates atmospheric pressure There is no air in outer space
Air - National Geographic Society 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
Air - definition of air by The Free Dictionary 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