(Latin catarrhus), a defluxion or increased secretion of mucus from the membrane which lines the nose, fauces, and bronchiae, accompanied with feverishness, sneezing, cough, thirst, lassitude, and loss of appetite; and frequently an entire deprivation of the sense of taste. It is also called Coryza, and in familiar language a cold. When epidemic, it is termed influenza. Catarrh is sometimes a chronic disease affecting the mucous membrane of the nose and fauces.