: uncalcified bone matrix
Examples of osteoid in a Sentence
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Bryce Millercolumnist,
San Diego Union-Tribune,
18 Sep. 2022
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Adjective
Pain in his dominant, right hand led to a diagnosis of osteoid osteoma, a noncancerous bone tumor that developed in the fourth metacarpal.
—
Bryce Millercolumnist,
San Diego Union-Tribune,
18 Sep. 2022
Cite this Entry
“Osteoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/osteoid. Accessed 1 Jul. 2026.
Copy CitationMedical Definition
osteoid
1 of 2 adjective
os·te·oid
ˈäs-tē-ˌȯid 
: resembling bone
osteoid tissue
osteoid
2 of 2 noun
: uncalcified bone matrix
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