endosteum
noun
end·os·te·um en-ˈdä-stē-əm 
plural endostea en-ˈdä-stē-ə
: the layer of vascular connective tissue lining the medullary cavities of bone
Cite this Entry
“Endosteum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/endosteum. Accessed 27 Apr. 2026.
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endosteum
noun
end·os·te·um en-ˈdäs-tē-əm
plural endostea -tē-ə
: the layer of vascular connective tissue lining the medullary cavities of bone
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