Additionally, the word, catarrh is defined to mean: catarrh'...n. [L. catarrhus; Gr. katarhoos, from katarrhein, to flow down; kata, down, and rhein, to flow.] an inflammation of the mucous membrane, more particularly of the throat and nose, accompanied by an increased secretion of mucous; as nasal catarrh; catarrh of the stomach.