1. A very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images
   "The installation of optical fiber cables greatly improved internet speeds in the area";
   - glass fiber [US], optical fibre [Brit, Cdn], glass fibre [Brit, Cdn]

Derived forms: optical fibers

Type of: fiber [US], fibre [Brit, Cdn]

Part of: fiber optic cable [US], fiberscope [US], fibre optic cable [Brit, Cdn], fibrescope [Brit, Cdn]

Encyclopedia: Optical fiber, nonconductive, riser