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periosteum

[ per-ee-os-tee-uhm ]

noun

, Anatomy.
, plural per·i·os·te·a [per-ee-, os, -tee-, uh].
  1. 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.


periosteum

/ ˌpɛrɪˈɒstɪəm /

noun

  1. a thick fibrous two-layered membrane covering the surface of bones


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Derived Forms

  • ˌperiˈosteal, adjective

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Other Words From

  • peri·oste·al peri·oste·ous adjective
  • peri·oste·al·ly adverb
  • subper·i·oste·al adjective
  • subper·i·oste·al·ly adverb

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Word History and Origins

Origin of periosteum1

1590–1600; < New Latin, variant of Late Latin periosteon, noun use of neuter of Greek periósteos around the bones. See peri-, osteo-

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Word History and Origins

Origin of periosteum1

C16: New Latin, from Greek periosteon, from peri- + osteon bone

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Compare Meanings

How does periosteum compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

Make a corresponding incision through the periosteum and raise it with a blunt dissector.

It signifies, of course, that the periosteum and the bone have become invaded by the inflammatory process.

In connection with the deep layer of the periosteum, and forming part of it, are found numerous bone-forming cells (osteoblasts).

In the periosteum we may take it roughly that inflammation runs a course similar to that occurring in soft tissues elsewhere.

As we know, the periosteum consists of two layers, an outer fibrous and an inner yellow elastic, and is extremely vascular.

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perionychiumperiostitis