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 classification — noun a) Meteorology. a system used to identify and to characterize the different air masses according to a basic scheme. A number of systems have been proposed, but the Bergeron classification has been the most widely accepted. In this system,… … Wiktionary
air mass — Synonyms and related words: anticyclone, cold front, cold sector, cyclone, front, high, high pressure area, isobar, isometric, isometric line, isopiestic line, isotherm, isothermal line, low, low pressure area, occluded front, polar front, squall … Moby Thesaurus
warm front — noun the front of an advancing mass of warmer air • Hypernyms: ↑front * * * noun : the forward boundary of a warm air mass moving to replace a retreating cold air mass see front illustration * * * Meteorol. a transition zone between a mass of… … Useful english dictionary
Warm front — A warm front is defined as the leading edge of an advancing mass of warm air; it separates warm air from the colder air ahead. Air masses are large bodies of air with similar properties of temperature and humidity that form over source regions,… … Wikipedia
warm front — A front along which warm air replaces cold air. If the warm air mass progressively passes over ground previously covered by cold air, the front will be a warm front. As this front passes an observer, the heavy stratus type of clouds and any… … Aviation dictionary
warm front — noun Date: 1921 an advancing edge of a warm air mass … New Collegiate Dictionary
warm front — noun count the front edge of a mass of warm air that brings warm weather when it moves into an area. The front edge of a mass of cold air is called a cold front … Usage of the words and phrases in modern English
warm front — warm′ front n. mer a transition zone between a mass of warm air and the colder air it is replacing • Etymology: 1920–25 … From formal English to slang
