beam
noun
3.
4.
a group of nearly parallel lines of electromagnetic radiation
verb
2.
4.
5.
Origin
From Middle English bem, beem, from Old English bēam (“tree, cross, gallows, column, pillar, wood, beam, splint, post, stock, rafter, piece of wood”), from Proto-West Germanic *baum, from Proto-Germanic *baumaz (“tree, beam, balk”), from Proto-Indo-European *bʰew- (“to grow, swell”).
Phrases
- Airy beam
- balance beam
- beam and scales
- Beam Bridge
- beam compass
- beam engine
- beam hole
- beam reach
- beam up
Related words
Broader terms
Narrower terms
Causes
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.