: a thin membranous layer of connective tissue that separates a layer of epithelial cells from the underlying lamina propia
Example Sentences
Recent Examples on the WebThe body reacts to a component of skin called the basement membrane. Dr. Keith Roach, oregonlive, 30 Apr. 2021
Word History
First Known Use
1842, in the meaning defined above
Medical Definition
basement membrane
noun
base·ment membrane ˌbā-smənt-
1
: a thin extracellular supporting layer that separates a layer of epithelial cells from the underlying lamina propria and is composed of the basal lamina and reticular lamina