periosteum

noun

peri·os·te·um | \ ˌper-ē-ˈä-stē-əm

How to pronounce periosteum (audio)

\

plural periostea\ ˌper-ē-ˈä-stē-ə

How to pronounce periostea (audio)

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Definition of periosteum

: the membrane of connective tissue that closely invests all bones except at the articular surfaces

Examples of periosteum in a Sentence

Recent Examples on the Web

Doctors think surfer’s ear happens because the thin skin of the ear canal doesn’t protect the bone from cold water, which causes inflammation in the membrane on the outside of the bone, called the periosteum. — Kiona N. Smith, Ars Technica, "The skulls of ancient pearl divers come with abnormal ear canal bone growths," 28 Dec. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'periosteum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Time Traveler for periosteum

The first known use of periosteum was in 1574

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periosteum

noun

peri·os·te·um | \ -tē-əm

\

plural -tea\ -tē-ə

\

Medical Definition of periosteum

: the membrane of connective tissue that closely invests all bones except at the articular surfaces

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