|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.