[fos-fawr-uh-skohp, -for-] /fɒsˈfɔr əˌskoʊp, -ˈfɒr-/
an instrument for measuring the duration of evanescent phosphorescence in different substances.
an instrument for measuring the duration of phosphorescence after the source of radiation causing it has been removed
[fos-fer-uh s, fos-fawr-uh s, -fohr-] /ˈfɒs fər əs, fɒsˈfɔr əs, -ˈfoʊr-/ adjective, Chemistry. 1. containing trivalent . /ˈfɒsfərəs/ adjective 1. of or containing phosphorus in the trivalent state adj. 1777, “phosphorescent,” from phosphorus + -ous. The chemical sense (1794) is immediately from French phosphoreux. phosphorous phos·pho·rous (fŏs’fər-əs, fŏs-fôr’əs) adj. Of, relating to, or containing phosphorus, […]
noun, Chemistry. 1. a colorless, crystalline, water-soluble acid of phosphorus, H 3 PO 3 , from which phosphites are derived. noun 1. Also called orthophosphorous acid. a white or yellowish hygroscopic crystalline dibasic acid. Formula: H3PO3 Systematic name phosphoric acid 2. any oxyacid of phosphorus containing less oxygen than the corresponding phosphoric acid phosphorous acid […]
[fos-fer-uh s] /ˈfɒs fər əs/ noun, plural phosphori [fos-fuh-rahy] /ˈfɒs fəˌraɪ/ (Show IPA) 1. Chemistry. a solid, nonmetallic element existing in at least three allotropic forms, one that is yellow, poisonous, flammable, and luminous in the dark, one that is red, less poisonous, and less flammable, and another that is black, insoluble in most solvents, […]
noun, Chemistry. 1. a radioactive isotope of phosphorus, used as a chemotherapeutic agent. phosphorus-32 n. A radioactive beta-emitting isotope of phosphorus having a half-life of 14.3 days and used as a tracer in studies of the metabolism of nucleic acids and phospholipids, and also used in the treatment of certain diseases of the osseous and […]