| Term: | phonon |
| Definition: |
a collective excitation in an elastic arrangement of atoms or molecules in condensed matter, specifically in solids and some liquids. |
| Term: | phonon |
| Definition: |
a quantum of energy or a quasiparticle associated with a compressional wave such as sound or a vibration of a crystal lattice |
| Examples: |
The dispersion of the optical phonons was stronger than expected. |