inotropic

in·o·tro·pic

(ē′nə-trō′pĭk, -trŏp′ĭk, ī′nə-)

adj.

Affecting the contraction of muscle, especially heart muscle: an inotropic drug.

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.

inotropic

(ˌɪnəˈtrɒpɪk; ˌaɪnə-)

adj

(Pharmacology) affecting or controlling the contraction of muscles, esp those of the heart: inotropic drugs.

[C20: from Greek, from is (stem in-) tendon + -tropic]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

i•no•trop•ic

(ˌi nəˈtrɒp ɪk, -ˈtroʊ pɪk, ˌaɪ nə-)

adj.

influencing the contractility of muscular tissue.

[1900–05; < Greek īno-, comb. form of is fiber, sinew + -tropic]