apyrase ap·y·rase (āp'ə-rās', -rāz')
n.
Any of various enzymes that catalyze the hydrolysis of ATP, causing the release of phosphate and energy.
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |