quasiparticle

qua si par ti cle |ˌkwāzīˈpärtəkəl, ˌkwäzē -ˌkweɪzaɪˈpɑrdəkəl | ▶noun Physics a quantum of energy in a crystal lattice or other system of bodies that has momentum and position and can in some respects be regarded as a particle.

quasiparticle

quasi |par ¦ticle |ˌkweɪzʌɪˈpaːtɪk (ə )l, ˌkweɪsʌɪ -, ˈkwɑːzi | ▶noun Physics a quantum of energy in a crystal lattice or other system of bodies which has momentum and position and can in some respects be regarded as a particle.