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 sheath of connective tissue enveloping bundles of muscle fibers.
[New Latin : peri- + Greek mūs, muscle; see mūs- in Indo-European roots.]
Main Entry: peri·my·si·um Pronunciation: "per-&-'miz(h)-E-&m Function: noun Inflected Form: pluralperi·my·sia/-E-&/ : the connective-tissue sheath that surrounds a muscle and forms sheaths for the bundles of muscle fibers
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.