释义 |
har·mon·ic I. \(ˈ)här|mänik, (ˈ)hȧ|-, -nēk\ adjective or har·mon·i·cal \-nə̇kəl\ Etymology: harmonic from Latin harmonicus, from Greek harmonikos, from harmonia harmony + -ikos -ic; harmonical from Latin harmonicus + English -al 1. archaic : of or relating to music : musical < where the harmonic meetings take place — Charles Dickens > specifically : relating to the melody of ancient music as distinct from its rhythm 2. : of or relating to harmony as distinguished from melody or rhythm < subtleties of harmonic change and tonality — Ralph Hill > 3. a. : of agreeable musical consonance : harmonious < harmonic chant > b. : pleasing to the ear : harmonized < great harmonic orchestral effects of the older verse — J.L.Lowes > 4. : expressible in terms of sine or cosine functions — see harmonic progression 5. : of an integrated nature : congruous < a creative, harmonic, loving human being — M.F.A.Montagu > specifically : having the general proportions of the body in harmony with each other (as elongated face with elongated skull) 6. : of or relating to harmonics < size of the resonating cavity cannot be the only determinant of the harmonic response — Robert Donington > specifically : sounding an octave or more higher than another organ stop of similar length < harmonic flute > II. \ ̷ ̷ˈ ̷ ̷ ̷ ̷\ noun (-s) 1. a. : one of a series of overtones or upper partials; especially : one produced by a vibration frequency which is an integral multiple of the vibration rate producing the fundamental < the ear possesses the very odd characteristic of imagining the existence of the fundamental even when it is not present, if the harmonics are strong — Oliver Read > — compare node 5 b. : a flutelike tone produced on a stringed instrument (as violin or harp) by touching a vibrating string at a nodal point causing one of the vibrating sections to determine the higher pitch in the harmonic series in direct proportion to the vibration frequency of the vibrating segment — called also flageolet tone 2. : a component frequency of a harmonic motion (as of an electromagnetic wave) that is an integral multiple of the fundamental frequency < the second harmonic has a frequency that is two times that of the fundamental > < if the current wave is analyzed mathematically, it is found to have a third harmonic about one-third the amplitude of the fundamental 60-cycle wave — B.F.Bailey & J.S.Gault > < at the frequencies used for television signals, more so than on the broadcast bands, the second, third, and fourth harmonics of the local oscillator in a superheterodyne receiver are liable to interfere with other sections of the receiver — Television & Radar Encyc. > |