Crocydismus

(kro-sid-iz'-mus). ' zrphology. of the disease, some contending that it is laryngeal diphtheria, while others believe it a special type of disease. See also Roup. C, Catarrhal, an affection of childhood characterized by paroxysms of intense dyspnea and a peculiar, ringing, metallic cough. C, False, catarrhal or spasmodic croup; catarrhal laryngitis. C, Spasmodic. See C, Catarrhal. Crown. See Corona . C. Gla , a kind of gla used in optics. C. Leather. See Leather . C. -setting, the operation of uniting an artificial crown to the root of a natural tooth; the operation being commonly known by the misnomer Croft's Operations. See Operations, Table of Crooke's Tube. A highly exhausted vacuum-tube used in producing X-rays.