fossula fos·su·la (fŏs'ə-lə, -yə-lə)
n. pl. fos·su·lae (-lē')
A small fossa.
| 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. |