wave front

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. all the points just reached by a wave as it propagates
• Hypernyms:
propagation
• Part Holonyms:
wave
2. (physics) an imaginary surface joining all points in space that are reached at the same instant by a wave propagating through a medium
• Syn:
wavefront
• Topics:
physics, natural philosophy
• Hypernyms:
surface