is spelt -our in BrE and vapor in AmE. Derivatives such as vapourless and vapourish follow the spellings of the root forms, but vaporous (adjective) vaporize (verb), and vaporizer (noun) are spelt -or- in both BrE and AmE.

Modern English usage. 2014.

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  • Vapour — est un système de distribution de contenu automatique. En clair Vapour est un logiciel permettant de gérer les mods de jeux vidéo un peu à l image de Steam. Il sait aussi gérer (installer, mettre à jour, désinstaller) les cartes non officielles… …   Wikipédia en Français

  • vapour — (US vapor) ► NOUN 1) moisture or another substance diffused or suspended in the air. 2) Physics a gaseous substance that can be liquefied by pressure alone. 3) (the vapours) dated a fit of faintness, nervousness or depression. DERIVATIVES… …   English terms dictionary

  • vapour — [vā′pər] n., vi., vt. Brit. sp. of VAPOR …   English World dictionary

  • vapour — n. & v. (US vapor) n. 1 moisture or another substance diffused or suspended in air, e.g. mist or smoke. 2 Physics a gaseous form of a normally liquid or solid substance (cf. GAS). 3 a medicinal agent for inhaling. 4 (in pl.) archaic a state of… …   Useful english dictionary

  • vapour — (BrE) (AmE vapor) noun ADJECTIVE ▪ water … OF VAPOUR/VAPOR ▪ cloud ▪ There was a hissing sound, and clouds of vapour were emitted. VERB + VAPOUR/VAPOR …   Collocations dictionary

  • vapour — /ˈveɪpə / (say vaypuh) noun 1. a visible exhalation, as fog, mist, condensed steam, smoke, etc. 2. a substance in the gaseous state (sometimes restricted to substances in the gaseous state when below their critical points); a gas. 3. matter… …   Australian-English dictionary

  • vapour — Vapor Va por, n. [OE. vapour, OF. vapour, vapor, vapeur, F. vapeur, L. vapor; probably for cvapor, and akin to Gr. ? smoke, ? to breathe forth, Lith. kvepti to breathe, smell, Russ. kopote fine soot. Cf. {Vapid}.] [Written also {vapour}.] [1913… …   The Collaborative International Dictionary of English

  • vapour — n. to emit a vapour * * * [ veɪpə] vapour trail n. to leave a vapour (high flying aircraft leave vapours) to emit a vapour vapor trail …   Combinatory dictionary

  • vapour — 1. noun /ˈveɪpə/ a) The gas phase component of a liquid or solid. b) The gaseous state of a substance that is normally a solid or liquid. 2. verb /ˈveɪpə/ a) To become vapour; to be emitted or circu …   Wiktionary

  • vapour — [[t]ve͟ɪpə(r)[/t]] vapours N VAR Vapour consists of tiny drops of water or other liquids in the air, which appear as mist. ...water vapour. (in AM, use vapor) …   English dictionary

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