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beam noun ( LINE )

Click to hear the UK pronunciation of this wordClick to hear the US pronunciation of this word/biːm/ n [C]

Definition

a line of light that shines from a bright object
We could just pick out the path in the weak beam of the UK usually torch/US flashlight.
The rabbit stopped, mesmerized by the beam of the car's headlights.
See also: moonbeam; sunbeam
a line of radiation or particles flowing in one direction
a laser beam
an electron beam

(Definition of beam noun (LINE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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