- 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 Unabridged Dictionary, © Random House, Inc. 2018
- 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.