a colorless, fuming gas, SiF 4 , used chiefly in the manufacture of fluosilicic acid.
noun 1. the area in northern California, southwest of San Francisco in the Santa Clara valley region, where many of the high-technology design and manufacturing companies in the semiconductor industry are concentrated. Silicon Valley noun 1. an industrial strip in W California, extending S of San Francisco, in which the US information technology industry is […]
silicoproteinosis sil·i·co·pro·tein·o·sis (sĭl’ĭ-kō-prō’tē-nō’sĭs, -tē-ə-nō’-) n. An acute, usually fatal pulmonary disorder, similar to pulmonary alveolar proteinosis, resulting from exposure to high concentrations of silica dust.
silicosiderosis sil·i·co·sid·er·o·sis (sĭl’ĭ-kō-sĭd’ə-rō’sĭs) n. See siderosilicosis.
noun, Pathology. 1. a disease of the lungs caused by the inhaling of siliceous particles, as by stonecutters. noun 1. (pathol) a form of pneumoconiosis caused by breathing in tiny particles of silica, quartz, or slate, and characterized by shortness of breath and fibrotic changes in the tissues of the lungs silicosis sil·i·co·sis (sĭl’ĭ-kō’sĭs) n. […]