Main Entry: end·os·te·al Pronunciation: en-'däs-tE-&l Function: adjective 1: of or relating to the endosteum 2: located within bone or cartilage —end·os·te·al·ly/-&-lE/adverb
Main Entry: end·os·te·um Pronunciation: en-'däs-tE-&m Function: noun Inflected Form: pluralend·os·tea/-tE-&/ : the layer of vascular connective tissue lining the medullary cavities of bone
endosteum en·dos·te·um (ěn-dŏs'tē-əm) n.pl.en·dos·te·a (-tē-ə) The thin layer of cells lining the medullary cavity of a bone. Also called medullary membrane.