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

Word History

Etymology

New Latin, from end- + Greek osteon bone — more at osseous

First Known Use

circa 1881, in the meaning defined above

Medical Definition

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