Definitions

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

  • n. The dense fibrous membrane covering the surface of bones except at the joints and serving as an attachment for muscles and tendons.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A membrane surrounding a bone.

from the GNU version of the Collaborative International Dictionary of English

  • n. The membrane of fibrous connective tissue which closely invests all bones except at the articular surfaces.

from The Century Dictionary and Cyclopedia

  • n. The enveloping membrane of bones; a dense fibrous membrane firmly investing the surface of bones, except where they are covered by cartilage.

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

  • n. a dense fibrous membrane covering the surface of bones (except at their extremities) and serving as an attachment for tendons and muscles; contains nerves and blood vessels that nourish the enclosed bone

Etymologies

New Latin, from Late Latin periosteon, from Greek, from periosteos, around the bone : peri-, peri- + osteon, bone; see ost- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek περί (peri, "about, around") + ὀστέον (osteon, "bone"). (Wiktionary)

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