isinglass

n [U]clear white jelly from the air bladders of some freshwaterfish, used for making jellies, glue, etc 鱼胶（用鱼鳔制成, 可制果冻及胶水等）.

irreversible, irreversibly, irrevocable, irrevocably, irrigable, irrigate, irrigation, irritability, irritable, irritably, irritant, irritate, irritating, irritation, irruption, is, is(o)-, Isaac Newton, ISBN, ISD, Islam, Islamic, island, islander, isle, islet, ism, isn't, ISO, isobar, isolate, isolated, isolation, isolation hospital, isolation ward, isolationism, isolationist, isometric, isomorph, isomorphic, isosceles,