phosphate definition, phosphate meaning | English dictionary

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phosphate

  

      n  
1    any salt or ester of any phosphoric acid, esp. a salt of orthophosphoric acid  
2    often pl   any of several chemical fertilizers containing phosphorous compounds  
     (C18: from French phosphat; see phosphorus, -ate1)  
  phosphatic      adj  


calcium phosphate  
      n  
1    the insoluble nonacid calcium salt of orthophosphoric acid (phosphoric(V) acid): it occurs in bones and is the main constituent of bone ash. Formula: Ca3(PO4)2  
2    any calcium salt of a phosphoric acid. Calcium phosphates are found in many rocks and used esp. in fertilizers  
pentose phosphate pathway  
      n   a sequence of metabolic reactions by which NADPH is synthesized, together with ribose phosphate, part of the synthesis of nucleic acids  
sodium phosphate  
      n   any sodium salt of any phosphoric acid, esp. one of three salts of orthophosphoric acid having formulas NaH2PO4 (monosodium dihydrogen orthophosphate), Na2HPO4 (disodium monohydrogen orthophosphate), and Na3PO4 (trisodium orthophosphate)  
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