| 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 fool or simpleton; ninny. |
perimysium per·i·my·si·um (pěr'ə-mĭzh'ē-əm, -mĭz'ē-əm)
n. pl. per·i·my·si·a (-mĭzh'ē-ə, -mĭz'ē-ə)
The fibrous sheath enveloping each of the primary bundles of skeletal muscle fibers.