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单词 beam
释义

beam

noun
 
/biːm/
/biːm/
Idioms
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  1.  
    a line of light, electromagnetic waves or particles
    • narrow beams of light/sunlight
    • the beam of a torch/flashlight
    • a laser/electron beam
    • (British English) The car's headlights were on full beam (= shining as brightly as possible and not directed downwards).
    see also high beams, low beams
    Extra Examples
    • He played the beam of his torch over the wall of the cave.
    • The beam from the lighthouse swept over the sea.
    • He was suddenly caught in the full beam of a searchlight.
    • They focus a high-powered X-ray beam on the affected area.
    Oxford Collocations Dictionaryadjective
    • light
    • bright
    • intense
    verb + beam
    • emit
    • fire
    • shoot
    beam + verb
    • shine
    • illuminate something
    • light something up
    preposition
    • beam from
    • beam of
    See full entry
  2.  
    a long piece of wood, metal, etc. used to support weight, especially as part of the roof in a building
    • The cottage had exposed oak beams.
    Extra Examples
    • It was a charming cottage with original beams and a thatched roof.
    • A concrete beam was put in to replace the wall we removed.
    • The missiles are bolted to reinforced beams in the floor.
    Topics Buildingsc1
    Oxford Collocations Dictionaryadjective
    • timber
    • wooden
    • oak
    beam + verb
    • support something
    See full entry
  3. (especially British English)
    (North American English usually balance beam)
    a wooden bar that is used in the sport of gymnastics for people to move and balance on
    • The gymnast performed a somersault on the beam.
  4. a wide and happy smile
    • a beam of satisfaction
    Wordfinder
    • beam
    • expression
    • frown
    • grimace
    • grin
    • leer
    • scowl
    • smirk
    • sneer
    • wince
    Topics Appearancec2
  5. Word OriginOld English bēam ‘tree, beam’, of West Germanic origin; related to Dutch boom and German Baum.
Idioms
off beam
  1. (informal) not correct; wrong
    • Your calculation is way off beam.

beam

verb
/biːm/
/biːm/
Verb Forms
present simple I / you / we / they beam
/biːm/
/biːm/
he / she / it beams
/biːmz/
/biːmz/
past simple beamed
/biːmd/
/biːmd/
past participle beamed
/biːmd/
/biːmd/
-ing form beaming
/ˈbiːmɪŋ/
/ˈbiːmɪŋ/
Idioms Phrasal Verbs
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  1. [intransitive, transitive, no passive] to have a big happy smile on your face
    • beam (at somebody) He beamed at the journalists.
    • beam (with something) She was positively beaming with pleasure.
    • beam something (at somebody) The barman beamed a warm smile at her.
    • His broad face beamed a hearty welcome.
    • + speech ‘I'd love to come,’ she beamed (= said with a large smile).
    Extra Examples
    • He beamed broadly at them, clearly very pleased to see them.
    • His face beamed with pleasure.
    • She beamed happily at Maxim.
    • She positively beamed with satisfaction.
    Topics Feelingsc2, Appearancec2
    Oxford Collocations Dictionaryadverb
    • broadly
    • positively
    • brightly
    preposition
    • at
    • with
    See full entry
  2. [transitive] beam something + adv./prep. to send radio or television signals over long distances using electronic equipment
    • Live pictures of the ceremony were beamed around the world.
    Topics TV, radio and newsc2
  3. [intransitive] + adv./prep. to produce a stream of light and/or heat
    • The morning sun beamed down on us.
    • Light beamed through a hole in the curtain.
  4. Word OriginOld English bēam ‘tree, beam’, of West Germanic origin; related to Dutch boom and German Baum.
Idioms
smile/grin/beam from ear to ear
  1. to be smiling, etc. a lot because you are very pleased about something
    • He was beaming from ear to ear.
    Topics Feelingsc2
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更新时间:2024/9/20 7:58:03