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sealed-beam

British  

adjective

  1. (esp of a car headlight) having a lens and prefocused reflector sealed in the lamp vacuum

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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“Sealed-beam” headlights were used from the 1950s through the 1980s, and generally offered poor light output.

From New York Times

Inside the net, under water, he hangs a sealed-beam headlight bulb fed with current from a storage battery, the beam pointing out of the net.

From Time Magazine Archive

After four years of joint research, a group of auto headlamp manufacturers has produced a brighter, sealed-beam lamp, with redesigned lens and hooded filament that throw the beam more to the right side of the road and screen out stray lights above the beam pattern.

From Time Magazine Archive

The new sealed-beam unit fits current models.

From Time Magazine Archive

After three years and some $50,000 in research, a group of headlight manufacturers headed by General Electric Co. announced an improved sealed-beam headlight for autos which will be available within two years.

From Time Magazine Archive