air mass — air′ mass n. mer a body of air covering a wide area, exhibiting approximately uniform properties through any horizontal section • Etymology: 1890–95 … From formal English to slang
air mass — n. Meteorol. a huge, uniform body of air having the properties of its place of origin: see POLAR CONTINENTAL, POLAR MARITIME, TROPICAL CONTINENTAL, TROPICAL MARITIME … English World dictionary
Air mass — For other uses, see Air mass (astronomy) and Air mass (solar energy). Different air masses which affect North America, as well as othe … Wikipedia
air mass — a body of air covering a relatively wide area, exhibiting approximately uniform properties through any horizontal section. [1890 95] * * * In meteorology, a large body of air having nearly uniform conditions of temperature and humidity at any… … Universalium
air mass — noun a large body of air with uniform characteristics horizontally • Hypernyms: ↑atmosphere, ↑atmospheric state • Hyponyms: ↑high, ↑low, ↑depression * * * noun : a body of air extending hundreds or thousands of miles horizontally and someti … Useful english dictionary
air mass — /ˈɛə mæs / (say air mas) noun a large body of air, up to thousands of kilometres in extent, of uniform temperature and humidity, and impacting on an adjacent air mass at a well defined front; classified according to temperature as Arctic,… … Australian-English dictionary
air mass — a unit used in astronomy in measuring the absorption of light from the stars by the atmosphere. One air mass is the amount of absorption of light from a star directly overhead (at the zenith). The absorption of light from other stars is… … Dictionary of units of measurement
air mass — noun a) a widespread body of air, the properties of which can be identified as: b) having been established while that air was situated over a particular region of the earths surface (airmass source region) and … Wiktionary
air mass — large body of air with shared temperature and humidity characteristics associated with its area of origin e.g. maritime or continental; tropical or polar … Geography glossary
air mass — n. section of air that maintains a consistent temperature and pressure … English contemporary dictionary