ortho-phosphoric acid

orthophosphoric acid

[awr-thoh-fos-fawr-ik, -for-, awr-]
noun Chemistry.
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.

Origin:
1870–75; ortho- + phosphoric acid

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World English Dictionary
orthophosphoric acid (ˌɔːθəʊfɒsˈfɒrɪk)
 
n
Also called: phosphoric acid a colourless soluble solid tribasic acid used in the manufacture of fertilizers and soaps. Formula: H3PO4

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

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

The American Heritage® Stedman's Medical Dictionary
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