Origin of phononphon- + -on, as in photon
From Ancient Greek Ï†Ï‰Î½Î® (phÅná¸—, “sound") + -on. Modelled after photon.
phonon - Computer Definition
A quantum of sound. A phonon is the sound particle equivalent of a photon, which is a light particle. While photons travel in space, long wave phonons travel within the atomic lattice of solid matter. Phonons are studied in solid state physics relating to thermal and electrical properties of materials. See saser and photon.