- an instrument for graphically recording the sound of the heartbeat.
Origin of phonocardiograph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
- A device consisting of microphones and recording equipment used to monitor and record heart sounds and murmurs.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.