a wave the energy of which is concentrated near a boundary or between parallel boundaries separating different materials and that has a direction of propagation parallel to these boundaries.
[ 1920-25 ]
a wave the energy of which is concentrated near a boundary or between parallel boundaries separating different materials and that has a direction of propagation parallel to these boundaries.
[ 1920-25 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012