[ey-tee-pee-eys, -eyz]

noun Biochemistry.

adenosine triphosphatase: any of several enzymes that catalyze the hydrolysis of ATP to ADP and phosphate.

Origin of ATPase

First recorded in 1945–50; ATP + -ase Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for atpase



adenosine triphosphatase; an enzyme that converts ATP to ADP
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

atpase in Medicine


[ā′tē-pēās, -āz]


Adenosine triphosphatase; an enzyme that catalyzes the hydrolysis of ATP.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.