n.
Pronunciation: ˌ per- ə - ' mi-zh ē - ə m, -z ē -
Function: noun
Inflected Form: plural -sia \ -zh ē - ə , -z ē - \
Etymology: New Latin, irregular from peri- + Greek mys mouse, muscle ― more at MOUSE
Date: circa 1842
: the connective-tissue sheath that surrounds a muscle and forms sheaths for the bundles of muscle fibers