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diffraction 音标拼音: [dɪfr'ækʃən] n. 衍射 衍射 diffraction绕射 diffraction n 1: when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bandsDiffraction \ Dif* frac" tion\, n. [ Cf. F. diffraction.] ( Opt.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action of a grating of fine lines or bars. [ 1913 Webster] Remarked by Grimaldi ( 1665), and referred by him to a property of light which he called diffraction. -- Whewell. [ 1913 Webster] { Diffraction grating}. ( Optics) See under { Grating}. { Diffraction spectrum}. ( Optics) See under { Spectrum}. [ 1913 Webster] 76 Moby Thesaurus words for " diffraction": amplitude, antinode, attenuation, broadcast, broadcasting, circumfusion, crest, de Broglie wave, deflection, deflexure, diffusion, dilution, dispensation, dispersal, dispersion, dissemination, dissipation, distortion, distribution, divergence, electromagnetic radiation, electromagnetic wave, evaporation, expansion, flection, flexure, fragmentation, frequency, frequency band, frequency spectrum, guided wave, in phase, interference, light, longitudinal wave, mechanical wave, node, out of phase, peppering, period, periodic wave, propagation, publication, radiation, radio wave, ray, refraction, reinforcement, resonance, resonance frequency, scatter, scattering, scatterment, seismic wave, shock wave, shotgun pattern, skewness, sound wave, sowing, spattering, splay, spread, spreading, sprinkling, strewing, surface wave, tidal wave, torsion, transverse wave, trough, volatilization, wave, wave equation, wave motion, wave number, wavelength
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