cardiotonic

adjective

car·​dio·​ton·​ic ˌkär-dē-ō-ˈtä-nik 

: tending to increase the tonus of heart muscle

cardiotonic noun

Word History

First Known Use

1866, in the meaning defined above

Medical Definition

cardiotonic

1 of 2 adjective

car·​dio·​ton·​ic ˌkärd-ē-ō-ˈtän-ik 

: tending to increase the tonus of heart muscle

cardiotonic steroids

cardiotonic

2 of 2 noun

: a cardiotonic substance