pho·no·car·di·o·graph
(fō′nə-kär′dē-ə-grăf′)n. An instrument consisting of microphones and recording equipment used to monitor and record heart sounds and murmurs.
pho′no·car′di·o·graph′ic adj.
pho′no·car′di·og′ra·phy (-ŏg′rə-fē) n.
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.
pho•no•car•di•o•graph
(ˌfoʊ nəˈkɑr di əˌgræf, -ˌgrɑf)
n. an instrument for graphically recording the sound of the heartbeat.
[1925–30]
pho`no•car`di•og′ra•phy (-ˈɒg rə fi) n.
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