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diffraction
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- Diffraction - n. - 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.
- Grating - n. - A system of close equidistant and parallel lines lines or bars, especially lines ruled on a polished surface, used for producing spectra by diffraction; -- called also diffraction grating.
- Eriometer - n. - An instrument for measuring the diameters of minute particles or fibers, from the size of the colored rings produced by the diffraction of the light in which the objects are viewed.
- Fringe - n. - One of a number of light or dark bands, produced by the interference of light; a diffraction band; -- called also interference fringe.