Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “beam”

See all translations

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 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

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).

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)
What is the pronunciation of beam?
Add Cambridge dictionaries to your browser to your website

Definitions of “beam” in other dictionaries

Word of the Day

hard luck story

a story or piece of information that someone tells you or writes about himself or herself, intended to make you feel feel sympathy for that person

Word of the Day

A certain je ne sais quoi: French words and phrases used in English

by Liz Walter,
January 21, 2015
It is an odd irony that the more sophisticated your use of English is, the more likely you are to use French words and phrases. Or, to be more accurate, ones you know to be French – words such as ballet, au pair, abattoir, fiancé, café, and restaurant are so entrenched in

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More