noun
the beam of a car's headlights that provides distant illumination
• Hypernyms:
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noun : the focus of a vehicle headlight that sends the light forward for maximum long-range illumination of the road ahead and is intended for driving in open country — contrasted with low beam
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an automobile headlight beam providing bright, long-range illumination of a darkened road and chiefly for use in driving in nonurban areas.
Also, highbeam. Cf. low beam.
[1935-40]
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high beam,
the stronger of the two beams in automobile headlights.
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n. the brightest setting of a vehicle's headlights
■ high beams the headlights of a vehicle when set on high beam
glare from the high beams of a car coming up behind them
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noun, pl ⋯ beams
US : the setting of a vehicle's headlights that makes the brightest light
[noncount]
The car's headlights were on high beam.
Useful english dictionary. 2012.