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[per-ee-os-tee-uh m] /ˌpɛr iˈɒs ti əm/

noun, plural periostea
[per-ee-os-tee-uh] /ˌpɛr iˈɒs ti ə/ (Show IPA). Anatomy.
the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.
noun (pl) -tea (-tɪə)
a thick fibrous two-layered membrane covering the surface of bones

1590s, from Modern Latin periosteum, Late Latin periosteon, from Greek periosteon, neuter of periosteos “round the bones,” from peri- (see peri-) + osteon (see osseous).

periosteum per·i·os·te·um (pěr’ē-ŏs’tē-əm)
n. pl. per·i·os·te·a (-tē-ə)
The thick fibrous membrane covering the entire surface of a bone except its articular cartilage and serving as an attachment for muscles and tendons.
per’i·os’te·al (-tē-əl) or per’i·os’te·ous (-tē-əs) adj.


Read Also:

  • Periostitis

    [per-ee-o-stahy-tis] /ˌpɛr i ɒˈstaɪ tɪs/ noun, Pathology. 1. inflammation of the . /ˌpɛrɪɒˈstaɪtɪs/ noun 1. inflammation of the periosteum periostitis per·i·os·ti·tis (pěr’ē-ŏ-stī’tĭs) or per·i·os·te·i·tis (-ŏs’tē-ī’tĭs) n. Inflammation of the periosteum.

  • Periostracum

    [per-ee-os-truh-kuh m] /ˌpɛr iˈɒs trə kəm/ noun, plural periostraca [per-ee-os-truh-kuh] /ˌpɛr iˈɒs trə kə/ (Show IPA) 1. the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.

  • Periotic

    [per-ee-oh-tik, -ot-ik] /ˌpɛr iˈoʊ tɪk, -ˈɒt ɪk/ adjective, Anatomy. 1. surrounding the ear. 2. noting or pertaining to certain bones or bony elements that form or help to form a protective capsule for the internal ear. /ˌpɛrɪˈəʊtɪk; -ˈɒtɪk/ adjective 1. of or relating to the structures situated around the internal ear 2. situated around the […]

  • Periovaritis

    periovaritis per·i·o·va·ri·tis (pěr’ē-ō’və-rī’tĭs) n. See perioophoritis.

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