·noun The hinder part or buttocks of certain quadrupeds, especially of a horse; hence, the place behind the saddle.
II. Croup ·noun An inflammatory affection of the larynx or trachea, accompanied by a hoarse, ringing cough and stridulous, difficult breathing; ·esp., such an affection when associated with the development of a false membrane in the air passages (also called membranous croup). ·see False croup, under False, and Diphtheria.