Ca-tärrh', n.

(ka-tär'), n. [Lat. catarrhus, Gr. κατάρροος, contracted into κατάρρους, a running down, rheum, from καταρρεῖν, from κατά, down, and ῥεῖν, to flow.] (Med.) (a.) A discharge of fluid from the mucous membrane, especially of the nose, fauces, and bronchial passages, caused by a cold in the head. It is attended with cough, thirst, lassitude, and watery eyes. (b.) The cold itself.