The quality or property of anything which touches the feelings or excites emotions and passions, especially that which awakens tender emotions, such as pity, sorrow, and the like; contagious warmth of feeling, action, or expression; pathetic quality.

disease

plural of pathosis / plural of pathos

(biology) An ecosystem based on parasitism

plural of pathosystem

A disease; a pathologic condition.

(pathology, genetics) All the pathogens of a certain environment, together with their gene pool

plural of pathosphere

An estimated numerical measure of pathogenicity

plural of pathoscore