Definition of reflector in US English:



  • 1A piece of glass, metal, or other material for reflecting light in a required direction, e.g., a red one on the back of a motor vehicle or bicycle.

    • ‘He did not have a light or reflectors on his bicycle.’
    • ‘The victim waved a sun reflector in an effort to guide emergency crews through the fast-moving current.’
    • ‘The lamps range in wattage from 13-watt to 32-watt and provide a very directed light using a reflector and lens system.’
    • ‘The reflector reflects the light from the lamp toward the condensing lens, which focuses the light onto the slide being projected.’
    • ‘‘It had fangs like tusks,’ he said, ‘eyes as red as bicycle reflectors, reflecting light from the moon, the house… everywhere!’’
    • ‘This puts it in the same category as pedal reflectors, which are required when a bike is sold.’
    • ‘Today, besides doing the sound, I did focus pulling, some camera work, held the light, held the reflector, and did so many other things as well.’
    • ‘Retrofitting specular reflectors and reducing the number of lamps can decrease lighting costs by 50 %.’
    • ‘Put reflectors on the bicycle so that others can see you.’
    • ‘Many thanks to our models, Annie Henrick, Jarlath Cunnane, Rosie and Dobie Petrov and also to the people who held up reflectors to direct light into the shadows and make things so much better for all the photographers present.’
    • ‘I did not use a front light - I used a reflector!’
    • ‘But according to Singh, when the police punched his name into their computer, they found he that had an unpaid fine from 1994 for riding his bicycle without a reflector.’
    • ‘Place a 3-inch wide red reflector behind the seat.’
    • ‘The vixen had a small white tip to her tail, and also a splash of white on the front of each paw which caused her feet to flicker in the bright glare like reflectors on bicycle pedals.’
    • ‘Screw the reflector onto the light socket.’
    • ‘Try taking the same shot using different reflectors and note the difference for future use.’
    • ‘The reflectors direct light exactly where it's needed.’
    • ‘‘At night their eyes shine like little bicycle reflectors and it makes them much easier to see,’ Mazzotti says.’
    • ‘Markers made of circular blue glass reflectors, indicating paths for visitors, would be embedded in the street.’
    • ‘Also, because a glass reflector is harder and more scratch-resistant than a metal reflector, cracking of the coating is minimized, providing a longer service life.’
    looking glass, reflecting surface
    View synonyms
    1. 1.1 An object or device which reflects radio waves, seismic vibrations, sound, or other waves.
      • ‘The gantry is a good place to mount the radar reflector as well.’
      • ‘In accordance with another embodiment of the present invention, the head assembly includes an hyperbolic reflector.’
      • ‘Dating of the seismic reflectors in our dataset is hampered by the lack of accurately dated successions in deep boreholes in the region.’
      • ‘The parabolic reflectors focus their respective wavelengths onto mechanical devices that act like shutters to optically modulate the beams.’
      • ‘In the wood thrush's preferred concert hall of moist woods, every leaf seems to serve as his sound reflector, imparting bell-like reverberations to his clear, round notes.’
      • ‘Subhorizontal seismic reflectors interpreted as sills are present over a huge region in the basement underlying the Western Canada Basin.’
      • ‘Here, the exterior material palette is repeated, with plywood that recalls the cedar siding acting as sound reflectors above the stage.’
      • ‘The seismic reflector at the base of the Balder Formation follows a regional unconformity surface, which records erosion of a major branching drainage network into the underlying Palaeocene section, following a major base level fall.’
      • ‘Generally, the areas in the western Rockall Trough are characterized by seismic reflectors displaying truncation and convergence with zones of exposed and highly reflective seafloor.’
      • ‘They measured the dimensions of the multi-layer reflector and fed those details into a computer program.’
      • ‘Previous cruises had logged the presence of vast seismic reflectors below the seafloor that were so dense that they were often mistaken for the seafloor itself.’
      • ‘Bone, gallstones, fat, and air are strong reflectors of sound and appear ‘echogenic’.’
      • ‘Commercial seismic sections from the North Sea do not image intra-basement reflectors very well.’
      • ‘Accordingly, a radio telescope consists of a concave metal reflector that focuses the radio waves on a receiver.’
      • ‘The Base Balder Formation unconformity forms a highly undulating, structured seismic reflector.’
      • ‘Since they are kept at different angles, the pots serve as sound reflectors.’
      • ‘Rocks are generally very efficient reflectors of sound waves and thus contribute significantly to reverberation; slabs of polished marble in particular have mirror-like properties in this respect.’
      • ‘In this scenario, the fluid-saturated seismic reflectors at shallow depth, the ‘K-horizon’, might represent the main fracture systems in which hot fluids have been repeatedly concentrated.’
      • ‘A surface acoustic wave device includes interdigital transducer electrode and reflectors disposed on a piezoelectric substrate.’
    2. 1.2 A reflecting telescope.
      • ‘For the rural skies, you can use compound telescopes and reflectors.’
      • ‘Consider an optical telescope with an aperture of 5 meters, such as the 200-inch reflector at Palomar Mountain in California.’
      • ‘There was even a large reflector telescope to view the action through the clouds.’
      • ‘The newest attraction is " Nellie, " the 36 inch reflector telescope unveiled in June.’
      • ‘The reflector telescope that Newton designed opened the door to magnifying objects millions of times - far beyond what could ever be obtained with a lens.’
      • ‘Monty mounted the reflector telescope with an equatorial mount on a concrete pedestal, to give it a solid foundation.’
      • ‘Today, there are reflector telescopes which allow the viewer to get a clearer view of clusters and nebula.’
      • ‘For these reasons the largest telescopes in the world are reflectors.’
      • ‘By 1789, Herschel had built a 12-metre reflector, the largest telescope of its day.’