Phthisis

{tif-sis or te/-sis) [tyOiveiv, to waste]. I. A wasting away or consumption, as P. bulb i, shrinking of the eye -ball. 2. Any disease characterized by emaciation and lo of strength, especially pulmonary tuberculosis. P., Fibroid. I. Interstitial pneumonia. 2. Chronic tuberculosis of the lungs attended with the formation of fibrous ti ue, which contracts, causes shrinking of the affected part, and sometimes bronchiectasis by traction on the bronchi. P. florida, an acute, rapidly fatal pulmonary7 tuberculosis; galloping consumption. P., Laryngeal, tuberculosis of the larynx. P., Pulmonary. I. Tuberculosis of the lung. 2. Any one of a variety of interstitial pneumonias, such as Grinders’ P., Miners’ P., Stone-cutters’ P., etc. P. ventriculi, atrophy of the mucous membrane and thinning of the coats of the stomach. 498