noun exciton A mobile concentration of energy in a crystal formed by an excited electron and an associated hole. 1
noun exciton a mobile neutral entity in a crystalline solid consisting of an excited electron bound to the hole produced by its excitation 0
noun exciton a localized, electrically neutral, excited state that allows the transfer of energy but not electric charge through a semiconductor, insulator, etc., as an electron bound to a positive hole 0
noun exciton (physics) A bound state of an electron and an electron hole in an insulator or semiconductor. 0
