An animal's viscera or internal organs, especially the heart, liver, and lungs.
[Middle English pertenaunce, purtenaunce, adjunct, from Old French partenance, pertinence, from partenir, to pertain; see pertain.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Anatomy) archaic the inner organs, viscera
[C14: from Old French pertinance something that belongs; see appurtenance]
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