单词	fiber optics
释义	fiber optics plural noun 1 : thin transparent fibers of glass or plastic that are enclosed by material of a lower refractive index and that transmit light throughout their length by internal reflections also : a bundle of such fibers used in an instrument (as for viewing body cavities) 2 singular in construction : the technique of the use of fiber optics Word History First Known Use 1956, in the meaning defined at sense 1 Kids Definition fiber optics noun plural fiber op·​tics -ˈäp-tiks : thin transparent fibers of glass or plastic that transmit light throughout their length Medical Definition fiber optics noun plural variants or chiefly British fibre optics 1 : thin transparent fibers of glass or plastic that are enclosed by material of a lower index of refraction and that transmit light throughout their length by internal reflections also : a bundle of such fibers used in an instrument (as an endoscope) 2 singular in construction : the technique of the use of fiber optics
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