Ortho-phosphoric acid



[awr-thoh-fos-fawr-ik, -for-, awr-] /ˈɔr θoʊ fɒsˈfɔr ɪk, -ˈfɒr-, ˌɔr-/

noun, Chemistry.
1.
a colorless, crystalline solid, H 3 PO 4 , the tribasic acid of pentavalent phosphorus: used chiefly in fertilizers, as a source of phosphorus salts, and in soft drinks as an acidulant and flavoring agent.
/ˌɔːθəʊfɒsˈfɒrɪk/
noun
1.
a colourless soluble solid tribasic acid used in the manufacture of fertilizers and soaps. Formula: H3PO4 Also called phosphoric acid

orthophosphoric acid or·tho·phos·phor·ic acid (ôr’thō-fŏs-fôr’ĭk)
n.
See phosphoric acid.

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    [awr-thuh-fos-fer-uh s, awr-thoh-fos-fawr-uh s, -fohr-] /ˈɔr θəˈfɒs fər əs, ˌɔr θoʊ fɒsˈfɔr əs, -ˈfoʊr-/ noun, Chemistry. 1. a white to yellowish, crystalline, hygroscopic, water-soluble solid, H 3 PO 3 , used chiefly in the synthesis of phosphites. /ˌɔːθəʊˈfɒsfərəs/ noun 1. a white or yellowish hygroscopic crystalline dibasic acid. Formula: H3PO3 Also called phosphorous acid

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  • Orthophyric

    [awr-thuh-fahy-rik] /ˌɔr θəˈfaɪ rɪk/ adjective, Petrography. 1. of or relating to a texture in which the groundmass is characterized by closely packed, short, quadrilateral crystals of feldspar larger than those in a trachytic groundmass.

  • Orthopnea

    [awr-thop-nee-uh, awr-thop-nee-uh, -thuh p-] /ɔrˈθɒp ni ə, ˌɔr θɒpˈni ə, -θəp-/ noun, Pathology. 1. difficult or painful breathing except in an erect sitting or standing position. orthopnea or·thop·ne·a (ôr’thŏp-nē’ə, ôr-thŏp’nē-ə) n. Discomfort in breathing that is relieved by sitting or standing in an erect position.



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