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cardiotonic

American  
[kahr-dee-oh-ton-ik] / ˌkɑr di oʊˈtɒn ɪk /

adjective

  1. having a tonic effect on the action of the heart.

noun

  1. a cardiotonic substance.

Etymology

Origin of cardiotonic

First recorded in 1935–40; cardio- + tonic

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.