- the membrane lining the medullary cavity of a bone.
Origin of endosteum
1880–85; end- + New Latin osteum < Greek ostéon bone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a highly vascular membrane lining the marrow cavity of long bones, such as the femur and humerus
C19: New Latin, from endo- + Greek osteon bone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- The thin layer of cells lining the medullary cavity of a bone.medullary membrane
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.