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

Derived Forms

• ˌperiˈosteal, adjective

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

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-

Word History and Origins

Origin of periosteum¹

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

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg