salol White crystalline powder, C13H10O3, derived from salicylic acid and used in plastics, suntan oils, analgesics and antipyretics. Was a trademark. saltpetre (potassium nitrate, saltpeter, niter, nitre) (KNO3) used especially as a fertilizer, explosive and a diuretic. salt rheum Popular name in the United States, for skin eruptions, such as eczema. Eczema; inflammatory skin disease, indicated by redness and itching, eruption of small vesicles, and discharge of a watery exudation, which often dries up, leaving the skin covered with crusts;--called also tetter, and milk crust. sanguinaria Rhizome (horizontal, underground stem) and roots of the bloodroot (Sanguinaria canadensis) used formerly as an expectorant and emetic. sedulous Persevering and constant in effort or application; assiduous. senna Plants of the genus Cassia, having showy, nearly regular, usually yellow flowers. Dried leaves of Cassia angustifolia or C. acutifolia, used as a cathartic. santonin Colorless crystalline compound, C15H18O3, wormwood, especially santonica; used to expel or destroy parasitic intestinal worms. sarsaparilla Tropical American plants, genus Smilax, with fragrant roots used as a flavoring. Dried roots of any of these plants. Sweet soft drink flavored with these roots. savin Evergreen Eurasian shrub (Juniperus sabina) with brownish-blue seed-bearing cones and young shoots that yield an oil formerly used medicinally. scrofula (struma) A form of tuberculosis affecting the lymph nodes, especially of the neck. Common in children. Spread by unpasteurized milk from infected cows. scurf Scaly or shredded dry skin, such as dandruff. scurvy Disease caused by deficiency of vitamin C (citrus fruit; oranges, limes,..); causes spongy and bleeding gums, bleeding under the skin, and extreme weakness. Seidlitz A village in Bohemia (also Sedlitz). Seidlitz powders, effervescing salts, consisting of forty grains of sodium bicarbonate, two drachms of Rochell salt (tartrate of potassium and sodium) and thirty-five grains of tartaric acid. The powders are mixed in water, and drunk while effervescing, as a mild cathartic; the result resembles the natural water of Seidlitz. Also Rochelle powders. senega Dried root of seneca snakeroot containing an irritating saponin and was formerly used as an expectorant sesquioxide Oxide containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus, alumina, Al2O3 is a sesquioxide. shirr Cook (unshelled eggs) by baking until set. sinapism. See mustard plaster. sitz bath Bathtub shaped like a chair, used to bathe only the hips and buttocks. slaked lime See lime sling Drink consisting of brandy, whiskey, or gin, sweetened and usually lemon-flavored.