a form of Morse code used in international radiotelegraphy.
the full name for Morse code
noun 1. a unit of distance at sea or in the air equal to 1.852 kilometers. noun 1. the full name for nautical mile (sense 1)
noun, Nautical. 1. a shade of bright orange, highly visible at a great distance and in murky weather, used to color aircraft, airport towers and hangars, boats, etc., for safety or rescue purposes.
noun 1. the set of symbols and modifiers designed, principally on the basis of articulatory considerations, to provide a consistent and universally understood system for transcribing the speech sounds of any language: devised by the International Phonetic Association. Abbreviation: IPA, I.P.A. noun 1. a series of signs and letters propagated by the Association Phonétique Internationale […]
noun, Music. 1. . noun 1. (music) the frequency of 435 hertz assigned to the A above middle C, widely used until 1939 See pitch1 (sense 30)