| 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 scrap or morsel of food left at a meal. |
histaminase his·tam·i·nase (hĭ-stām'ə-nās', -nāz', hĭs'tə-mə-)
n.
An enzyme that inactivates histamine and is found in the digestive system.