| Answer | Crossword Clue |
|---|---|
| excitons | EXCITON, a combination of excited electron and hole |
| exciton | a combination of excited electron and hole |
| excitons | a mobile combination of an electron and a hole in an excited crystal (as of a semiconductor) |
| excitonic | relating to an exciton, an electrically neutral excited crystal state, bound state of electron and hole |
| excitons | localized, mobile excited state of a crystal, consisting of an electron and a hole bound together |
| exciton | localized, mobile excited state of a crystal, consisting of an electron and a hole bound together |
