ENDOCARDIUM

endocardium

(noun) the membrane that lines the cavities of the heart and forms part of the heart valves

Source: WordNet® 3.1

Noun

endocardium (plural endocardia)

(anatomy, cardiology) A thin serous membrane that lines the interior of the heart.

Source: Wiktionary

En`do*car"di*um, n. Etym: [NL., fr. Gr. (Anat.)

Definition: The membrane lining the cavities of the heart.

Source: Webster’s Unabridged Dictionary 1913 Edition

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