Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The inner layer of the pericardium that is in actual contact with the surface of the heart.

from The Century Dictionary.

  • noun In anatomy, the cardiac or visceral layer of the pericardium, lying directly upon the heart.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) That part of the pericardium which forms the outer surface of the heart; the cardiac pericardium.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy The layer of tissue between the pericardium and the heart.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the innermost of the two layers of the pericardium

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[New Latin : epi– + Greek kardiā, heart; see kerd- in Indo-European roots.]

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