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artificial heart

noun
1.
any of various four-chambered devices, modeled on the human heart, that pump blood by attachment to a power source and that are constructed for temporary external use or for implantation as a temporary or permanent heart replacement.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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artificial-heart in Medicine

artificial heart n.
A mechanical pump used to replace the function of a damaged heart, either temporarily or as a permanent internal prosthesis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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