any of the class of free radicals formed as intermediates in the oxidation of a hydroquinone to a quinone.
noun 1. a legendary Assyrian queen, the wife of Ninus and founder of Babylon, noted for her wisdom and beauty. noun 1. the legendary founder of Babylon and wife of Ninus, king of Assyria, which she ruled with great skill after his death
adjective 1. interested in, concerned with, or based on what is real or practical: a realistic estimate of costs; a realistic planner. 2. pertaining to, characterized by, or given to the representation in literature or art of things as they really are: a realistic novel. 3. resembling or simulating real life: a duck hunter skilled […]
[sem-ee-ri-lij-uh s, sem-ahy-] /ˌsɛm i rɪˈlɪdʒ əs, ˌsɛm aɪ-/ adjective 1. having a somewhat religious character.
adjective 1. not fully rigid; partly rigid. 2. Aeronautics. noting or pertaining to a type of airship whose shape is maintained by means of a rigid keellike structure and by internal gas pressure. adjective 1. partly but not wholly rigid 2. (of an airship) maintaining shape by means of a main supporting keel and internal […]
adjective 1. having one surface that is round and another that is flat.