This classification is based on the way these drugs are used for the treatment of a particular condition. Inotropic, Chronotropic and Dromotropic are different types of cardiac drugs. This classification is based on the way these drugs are used for the treatment of a particular condition. Inotropic drugs affect the force of cardiac contraction. Chronotropic drugs affect the heart rate. Dromotropic drugs affect conduction velocity through the conducting tissues of the heart.
ectoparasite noun a parasite which lives on the skin or outer surface of its host but feeds by piercing the skin. Compare endoparasite
Hulton Archive/Getty Images. To most of us, the definition of ectoplasm is a slime in 'Ghostbusters.'. To a more select group of people, it is the outer layer of cytoplasm that helps make up an amoeba. And to an even smaller subset of the population, ectoplasm is a substance that secretes off spirits -- or their earthbound medium -- and might just help that medium produce spooky, otherworldly feats for awed witnesses. Now.