pyrophosphate

A salt of pyrophosphoric acid; accumulates in cases of hypophosphatasia; sometimes referred to as inorganic p. (PPi). SYN: diphosphate.

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py·ro·phos·phate -'fäs-.fāt n a salt or ester of pyrophosphoric acid

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py·ro·phos·phate (pi″ro-fosґfāt) any salt, anion, or ester of pyrophosphoric acid. Formed during many metabolic reactions, it is an important intermediate because its large free energy of hydrolysis makes the reactions essentially irreversible. The symbol PPi denotes the uncombined form.

Medical dictionary. 2011.

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  • Pyrophosphate — Pyrophosphate …   Wikipedia

  • pyrophosphate — [ pirofɔsfat ] n. m. • 1842; de pyro et phosphate ♦ Chim. Sel de l acide pyrophosphorique. ● pyrophosphate nom masculin Sel de l acide pyrophosphorique. pyrophosphate [piʀofɔsfat] n. m. ÉTYM …   Encyclopédie Universelle

  • Pyrophosphate — Pyr o*phos phate, n. (Chem.) A salt of pyrophosphoric acid. [1913 Webster] …   The Collaborative International Dictionary of English

  • pyrophosphate — [pī΄rə fäs′fāt΄] n. a salt or ester of pyrophosphoric acid …   English World dictionary

  • Pyrophosphate — Anion pyrophosphate ou PPi Les pyrophosphates (appelés aussi diphosphates) sont l anion (base conjuguée), les sels et les esters de l acide pyrophosphorique. Les pyrophosphates sont constitués de deux molécules de phosphates condensées. Ils sont… …   Wikipédia en Français

  • Pyrophosphate — Diphosphat Anion Diphosphate (auch Pyrophosphate (PPa; engl.: PPi)) sind Salze und Ester der Diphosphorsäure H4P2O7. Diphosphate sind Kondensate von zwei Phosphaten. Sie sind über eine P–O–P Säureanhydrid Bindung miteinander verknüpft ( …   Deutsch Wikipedia

  • pyrophosphate — ortodifosfatas statusas T sritis chemija formulė M₄P₂O₇ atitikmenys: angl. orthodiphosphate; pyrophosphate rus. ортодифосфат; пирофосфат ryšiai: sinonimas – μ ( okso( )heptaoksodifosfatas (4–) …   Chemijos terminų aiškinamasis žodynas

  • pyrophosphate — noun a salt or ester of pyrophosphoric acid • Hypernyms: ↑salt * * * /puy reuh fos fayt/, n. Chem. a salt or ester of pyrophosphoric acid. [1830 40; PYROPHOSPH(ORIC ACID) + ATE2] * * * pyrophosphate noun see above • • • Main Entry: ↑pyro …   Useful english dictionary

  • pyrophosphate — noun Date: 1833 a salt or ester of pyrophosphoric acid …   New Collegiate Dictionary

  • pyrophosphate — /puy reuh fos fayt/, n. Chem. a salt or ester of pyrophosphoric acid. [1830 40; PYROPHOSPH(ORIC ACID) + ATE2] * * * …   Universalium

  • pyrophosphate — noun Any salt or ester of pyrophosphoric acid …   Wiktionary

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