smog

Fog made darker and heavier by chemical fumes and smoke. A fog-like layer, often brown in color, that hangs over many areas under certain atmospheric conditions. Smog, a contraction of the words smoke and fog, is compounded from smoke, moisture and numerous chemicals produced by combustion (from power plants, automotive engines, etc.) and from natural and industrial processes. Formation of smog is aided by the presence of sunlight which reacts with many chemicals and combustion products such as hydrocarbons and oxides of nitrogen to form other more noxious compounds.

Dictionary of automotive terms. 2015.

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  • smog — smog …   Dictionnaire des rimes

  • Smog — is a kind of air pollution; the word smog is a portmanteau of smoke and fog. Classic smog results from large amounts of coal burning in an area caused by a mixture of smoke and sulfur dioxide. Modern smog does not usually come from coal but from… …   Wikipedia

  • SMOG — (Simple Measure of Gobbledygook) is a readability formula that estimates the years of education needed to completely understand a piece of writing. SMOG is widely used, particularly for checking health messages.cite journal |last=Ley |first=P.… …   Wikipedia

  • smog — s.n. Ceaţă deasă, amestecată cu fum şi cu praf industrial, formată în regiunile industrializate sau în marile oraşe, cu efecte dăunătoare asupra sănătăţii populaţiei. – Din engl. smog. Trimis de RACAI, 07.12.2003. Sursa: DEX 98  smog s. n.… …   Dicționar Român

  • smog — [ smɔg ] n. m. • 1905; mot angl., de smoke « fumée » et fog « brouillard » ♦ Anglic. Brouillard épais formé de particules de suie et de gouttes d eau, dans les régions humides et industrielles. ● smog nom masculin (anglais smog, de smoke, fumée,… …   Encyclopédie Universelle

  • Smog — Sm erw. fach. (20. Jh.) Entlehnung. Entlehnt aus ne. smog, einer Kreuzung aus ne. smoke Rauch und ne. fog Dunst, Nebel .    Ebenso nndl. smog, ne. smog, nschw. smog, nnorw. smog; Smoking. ✎ DF 4 (1978), 241f.; Rey Debove/Gagnon (1988), 934;… …   Etymologisches Wörterbuch der deutschen sprache

  • smog — smòg s.m.inv. CO coltre di nebbia densa e scura costituita da vapore acqueo misto a fumi e altri residui di combustione, che ristagna spec. sui grandi centri urbani o industriali: lo smog inquina l aria delle grandi città, prendere provvedimenti… …   Dizionario italiano

  • smog — smog·gy; an·ti·smog; smog·less; smog; …   English syllables

  • smog — smȍg m DEFINICIJA ekol. 1. magla s visokim stupnjem onečišćenja od industrijskih emisija i automobilskih ispušnih plinova 2. meton. zagađenje zraka proizvodima izgaranja SINTAGMA fotokemijski smog smog koji je nastao oksidacijom hidrougljika,… …   Hrvatski jezični portal

  • smog|gy — «SMOG ee», adjective, gi|er, gi|est. full of smog: »There was a virus in the…smoky, smoggy air (Newsweek) …   Useful english dictionary

  • Smog — der; [s], s <aus gleichbed. engl. smog, zusammengezogen aus smoke »Rauch« u. fog »Nebel«> dicke, undurchdringliche, aus Rauch u. Schmutz bestehende Dunstglocke über Industriestädten …   Das große Fremdwörterbuch

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