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Medical Term:


Pronunciation: pī′rō-fos′fă-tās

Definition: Any enzyme catalyzing the hydrolysis of a pyrophosphate bond between two phosphoric groups, leaving one on each of the two fragments, inorganic pyrophosphatase, NAD+ p. (cleaves NAD, etc., to mononucleotides), ATP pyrophosphatase (cleaves inorganic pyrophosphate from ATP, leaving AMP).

Synonym(s): diphosphatase

See Also: flavin adenine dinucleotide