optical fiber

/ˌɑptəkəl ˈfaɪbər/
IPA guide

Other forms: optical fibers

Definitions of optical fiber
  1. noun
    a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images
    synonyms: glass fiber, glass fibre, optical fibre
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    type of:
    fiber, fibre
    a slender and greatly elongated substance capable of being spun into yarn
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