| 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. |
dilation di·la·tion (dī-lā'shən, dĭ-)
n.
The act of expanding or the condition of being expanded.
Dilatation.
| dilation (dī-lā'shən, dĭ-) Pronunciation Key
The widening or stretching of an opening or a hollow structure in the body. |