| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| the offspring of a zebra and a donkey. |
| agronomy (ə-grŏn'ə-mē) Pronunciation Key
The scientific study of soil management and crop production, including irrigation and the use of herbicides, pesticides, and fertilizers. |