beam Definition in the Cambridge English Dictionary
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Definition of “beam” - English Dictionary

Definition of "beam" - American English Dictionary

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beamnoun [C]

 us   /bim/

beam noun [C] (LIGHT)

a ​line of ​light coming from the ​sun or a ​brightlight, esp. as ​seen against a ​darkerbackground: a beam of ​sunlight A ​laser beam ​scans the disc’s ​surface.

beam noun [C] (WOOD)

a ​long, ​thickpiece of ​wood, ​metal, or ​concrete, esp. one used to ​supportweight in a ​building or other ​structure

beamverb

 us   /bim/

beam verb (SEND LIGHT)

[I/T] to ​send out a ​line of ​light: [I] The ​sun beamed down on the ​ballfield. [T] Detroit ​stations are beamed (= ​broadcast) to ​Canadiancommunities.

beam verb (SMILE)

[I] to ​smile with ​obviouspleasure: His ​face beamed as if he’d ​won a ​goldmedal at the ​Olympics.
(Definition of beam from the Cambridge Academic Content Dictionary © Cambridge University Press)

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 ​brightobject: We could just ​pick out the ​trail in the ​weak beam of the ​flashlight. The ​rabbitstopped, ​mesmerized by the beam of the car's ​headlights.
See also
a ​line of radiation or particlesflowing in one ​direction: a laser beam an electron beam

beam noun [C] (WOOD)

a ​long, ​thickpiece of ​wood, ​metal, or ​concrete, ​especially used to ​supportweight in a ​building or other ​structure: The ​sittingroom had ​exposed wooden beams.the beam in the ​sport of women's gymnastics , a ​woodenbar on which the ​competitorsbalance and ​performmovements

beamverb

uk   us   /biːm/

beam verb (SMILE)

[I] to ​smile with ​obviouspleasure: She beamed withdelight/​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 ​radiosignal, etc.: The ​sun beamed (= ​shonebrightly) 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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