EXCITONS
17
Scrabble
19
WWF
E(1) X(8) C(3) I(1) T(1) O(1) N(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- A bound state of an electron and an electron hole in an insulator or semiconductor
Source: Wiktionary
