beam Definition in Cambridge British English Dictionary
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Definition of "beam" - British English Dictionary

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beamnoun [C]

uk   us   /biːm/

beam noun [C] (LINE)

B2 a line of light that shines from a bright object: We could just pick out the trail in the weak beam of the flashlight. The rabbit stopped, mesmerized by the beam of the car's headlights.
See also
a line of radiation or particles flowing in one direction: a laser beam an electron beam

beam noun [C] (WOOD)

a long, thick piece of wood, metal, or concrete, especially used to support weight in a building or other structure: The sitting room had exposed wooden beams.the beam in the sport of women's gymnastics , a wooden bar on which the competitors balance and perform movements

beamverb

uk   us   /biːm/

beam verb (SMILE)

[I] to smile with obvious pleasure: She beamed with delight/pleasure at his remarks. The child beamed at his teacher as he received the award. [+ speech] "I'm so pleased to see you," he beamed (= said as he smiled).

beam verb (SEND OUT)

[I or T] to send out a beam of light, an electrical or radio signal, etc.: The sun beamed (= shone brightly) down on the boat as it drifted along. The concert was beamed (= broadcast) by satellite all over the world.
(Definition of beam from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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