[ap-uh-reys, -reyz]

noun Biochemistry.

a relatively nonspecific ATPase occurring in plants and molds.

Nearby words

  1. apure,
  2. apurimac,
  3. apurímac,
  4. apus,
  5. apx.,
  6. apyretic,
  7. apyrexia,
  8. apéritif,
  9. aq,
  10. aq.

Origin of apyrase

1940–45; a(denyl)pyr(ophosphat)ase; see adenosine triphosphatase

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for apyrase


[ăpə-rās′, -rāz′]


Any of various enzymes that catalyze the hydrolysis of ATP, causing the release of phosphate and energy.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.