phosphorus NOUN a poisonous non-metallic chemical element existing as a yellowish waxy solid which ignites spontaneously in air and glows in the dark, and as a less reactive form used in making matches.
DERIVATIVES phosphorous adjective.
USAGE The correct spelling for the noun referring to the chemical element is phosphorus, while the correct spelling for the adjective is phosphorous.
ORIGIN Greek phsphoros, from phs 'light' + -phoros '-bringing' .

English terms dictionary. 2015.

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  • Phosphorous — Phos phor*ous (f[o^]s f[o^]r*[u^]s), a. [Cf. F. phosphoreux.] (Chem.) Of or pertaining to phosphorus; resembling or containing phosphorus; specifically, designating those compounds in which phosphorus has a lower valence as contrasted with… …   The Collaborative International Dictionary of English

  • phosphorous — (adj.) 1777, phosphorescent, from PHOSPHORUS (Cf. phosphorus) + OUS (Cf. ous). The chemical sense (1794) is immediately from Fr. phosphoreux …   Etymology dictionary

  • phosphorous — [fäs′fə rəs, fäs fôr′əs] adj. [ PHOSPHOR(US) + OUS] 1. rare var. of PHOSPHORESCENT 2. [Fr phosphoreux] of, like, or containing phosphorus, esp. trivalent phosphorus …   English World dictionary

  • phosphorous — phosphorus, phosphorous Phosphorus is the noun for the chemical element, and phosphorous is the adjective meaning ‘containing phosphorus’ …   Modern English usage

  • phosphorous — [ fɒsf(ə)rəs] adjective 1》 relating to or containing phosphorus.     ↘Chemistry of phosphorus with a valency of three. 2》 phosphorescent. Usage The correct spelling for the noun denoting the chemical element is phosphorus, while the adjective is… …   English new terms dictionary

  • phosphorous acid — n. a white or yellowish, crystalline acid, H3PO3, that absorbs oxygen readily: used as a chemical reducing agent and as an analytical reagent …   English World dictionary

  • Phosphorous acid — Chembox new ImageFile = Phosphonic acid 3D balls A.png ImageSize = 150px ImageName = Phosphonic acid ImageFile1 = Phosphonic acid 2D dimensions.png ImageSize1 = 150px ImageName1 = Phosphonic acid IUPACName = phosphonic acid… …   Wikipedia

  • phosphorous acid — Chem. a colorless, crystalline, water soluble acid of phosphorus, H3PO3, from which phosphites are derived. [1785 95] * * * ▪ chemical compound (H3PO3),also called  Orthophosphorous Acid,         one of several oxygen acids of phosphorus, used as …   Universalium

  • phosphorous acid — H3PO3; its salts are phosphites. * * * phosphorous acid n a deliquescent crystalline acid H3PO3 used esp. as a reducing agent and in making phosphites * * * phos·pho·rous ac·id (fos forґəs) a reducing inorganic acid, H3PO3, which readily… …   Medical dictionary

  • phosphorous diffusion source — fosforo difuzijos šaltinis statusas T sritis radioelektronika atitikmenys: angl. phosphorous diffusion source vok. Phosphordiffusionsquelle, f rus. диффузионный источник фосфора, m pranc. source de diffusion de phosphore, f …   Radioelektronikos terminų žodynas

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