from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A light with a reflector and lens mounted on the front of a locomotive, automobile, or other vehicle. Also called headlamp.
  • n. A lamp mounted on a miner's or spelunker's hard hat.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A bright light, with a lens and reflector, on the front of a motor vehicle (or originally a train), designed to illuminate the road when driving at night; normally one of a pair.

from the GNU version of the Collaborative International Dictionary of English

  • n. A light, with a powerful reflector, placed at the front of a vehicle such as an automobile, truck, locomotive etc., to throw light on the road or track ahead of the vehicle at night, or in going through a dark tunnel; a headlamp.

from The Century Dictionary and Cyclopedia

  • n. A large lamp or lantern and reflector carried on the front of a locomotive and serving to illuminate the track by night.
  • n. A white light carried at a steamer's masthead when under way.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a powerful light with reflector; attached to the front of an automobile or locomotive


Sorry, no etymologies found.


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  • The headlight was a powerful electric one, with a black cap over the lens.

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  • My husband also wears his "headlight" all over the place, in the house even!

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  • After considerable study, the optimum shape was found to be the Soyuz 'headlight' shape - a hemispherical forward area joined by a barely angled cone 7 degrees to a classic spherical section heat shield.


  • PeriOptix 'latest product is the next generation portable LED headlight which is significantly smaller and lighter than most other LED headlights.

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  • It gives new meaning to the term "headlight" by actually emitting light that can help Kratos detect secret doors and passages.



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