Gelatine, jel'a-tin, a substance obtained by dissolving the gelatinous portions of animals. Gelatine of animals corresponds to the juices of fruit and plants. It is obtained chiefly from horns, hoofs, tendons, cartilage, bones, and portions of hides. In a particularly pure form, derived from the air bladders of certain fishes, especially the sturgeon, it is called isinglass. In a crude form, gelatine is the glue of commerce. Pure gelatine capsules are used by druggists to contain doses of disagreeable medicine. Gelatine plates serve a useful purpose in photography. Gelatine in its various forms is now one of the important by-products of packing houses. See ISINGLASS; GLUE.