Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The sheath of connective tissue enveloping bundles of muscle fibers.

from The Century Dictionary.

  • noun The outer investment or sheath of areolar tissue which surrounds a muscle, sending inward partitions between the fasciculi.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) The connective tissue sheath which surrounds a muscle, and sends partitions inwards between the bundles of muscular fibers.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A layer of connective tissue which surrounds several muscle fibers into bundles.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the sheath of connective tissue that covers a bundle of muscle fibers

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[New Latin : peri– + Greek mūs, muscle; see mūs- in Indo-European roots.]

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