cardiotonic

adjective

car·​dio·​ton·​ic ˌkär-dē-ō-ˈtä-nik How to pronounce cardiotonic (audio)
: tending to increase the tonus of heart muscle
cardiotonic noun

Word History

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of cardiotonic was in 1866

Dictionary Entries Near cardiotonic

Cite this Entry

“Cardiotonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cardiotonic. Accessed 21 Jul. 2024.

Medical Definition

cardiotonic

1 of 2 adjective
car·​dio·​ton·​ic ˌkärd-ē-ō-ˈtän-ik How to pronounce cardiotonic (audio)
: tending to increase the tonus of heart muscle
cardiotonic steroids

cardiotonic

2 of 2 noun
: a cardiotonic substance
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