light beam

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a column of light (as from a beacon) (Freq. 2)
• Syn:
beam, beam of light, ray, ray of light, shaft,
shaft of light, irradiation
• Derivationally related forms:
irradiate (for: irradiation), ray (for: ray), beamy (for: beam), beam (for: beam)
• Hypernyms:
light, visible light, visible radiation
• Hyponyms:
heat ray, high beam, moonbeam, moon ray, moon-ray,
sunbeam, sunray, laser beam, low beam