Cast

(kast). I. A ma of fibrous or plastic material that has taken the form of some cavity in which it has been moulded. From their source, casts may be cla ified as bronchial, intestinal, nasal, esophageal, renal, tracheal, urethral, vaginal, etc. Of these, the renal casts are the most important, by reason of their significance in diseases of the kidney. Cla ed according to their constitution, casts are epithelial, fatty, fibrinous, granular, hyaline, mucous, sanguineous, waxy, etc. See Tube-casts. 2. To throw off; applied to labor in cattle. 3. Strabismus.