. "Catalysis of the reaction: a nucleoside triphosphate + H2O = nucleoside diphosphate + phosphate." . . "nucleoside-triphosphatase activity" . "apyrase activity" . "NTPase activity" . "nucleoside 5-triphosphatase activity" . "nucleoside triphosphatase activity" . "nucleoside triphosphate hydrolase activity" . "nucleoside triphosphate phosphohydrolase activity" . "nucleoside-5-triphosphate phosphohydrolase activity" . "unspecific diphosphate phosphohydrolase activity" . . . . . . . . . . .