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English definition of “beam”

beam

noun [C] uk   /biːm/ us  

beam noun [C] (LINE)

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

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.Arches, columns and beams the beam in the sport of women's gymnastics, a wooden bar on which the competitors balance and perform movementsGymnastics

beam

verb uk   /biːm/ us  

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).Laughing and smiling

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.Emitting and casting light
(Definition of beam from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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