periosteum

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun 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

From Ancient Greek περί (perí, “about, around”) + ὀστέον (ostéon, “bone”).

The periosteum is the membrane around the bones. — Orthography : $b as outlined in the state course of study for Illinois : seventh and eighth years, Elmer W. (Elmer Warren) Cavins
Small rib fragments that were adhering to periosteal tags were carefully removed preserving as much periosteum as possible. — Report of the President's Commission on the Assassination of President John F. Kennedy, United States. Warren Commission

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