Akademik

1. all the points just reached by a wave as it propagates

2. (physics) an imaginary surface joining all points in space that are reached at the same instant by a wave propagating through a medium

1. : a surface composed at any instant of all the points just reached by a vibrational disturbance in its propagation through a medium

2. : a surface so drawn as to pass through those parts of a wave where the distortion or displacement of the medium through which the wave passes is everywhere the same

a surface, real or imaginary, that is the locus of all adjacent points at which the phase of oscillation is the same.

[1865-70]

wave front,

Physics. the continuous line or surface including all the points in space reached by a wave or vibration at the same instant in traveling through a medium.