endocardium Hear it!

endocardium definition

endo·car·dium (en′dō kär′dē əm)

noun

the thin endothelial membrane lining the cavities of the heart

Etymology: ModL < endo- + Gr kardia, heart

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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