Imaginary surface that represents corresponding points of waves vibrating in unison. As identical waves from the same source travel through a homogeneous medium, corresponding crests and troughs are in phase at any instant; that is, they have completed the same fraction of their periodic motion. Any surface drawn through all points of the same phase constitutes a wave front.
This entry comes from Encyclopædia Britannica Concise.
For the full entry on wave front, visit Britannica.com.
Seen & Heard
What made you look up wave front? Please tell us what you were reading, watching or discussing that led you here.