"08681966-n"^^ . . . . . . "108151014"@en-us . . "108681966"^^ . . . . . . . "wavefront"@en-us . . "0"^^ . "wave front"^^ . . "wave front"@en-us . "(physics) an imaginary surface joining all points in space that are reached at the same instant by a wave propagating through a medium"@en-us . "0"^^ .