Definition from Wiktionary, the free dictionary
- A surname of Swedish origin, derived from ryd, woodland clearing + berg, mountain
- Johannes Rydberg, Swedish physicist.
- A lunar impact crater that is located on the far side of the Moon
- Rydberg atom
- Rydberg constant
- Rydberg formula
- Rydberg ionization spectroscopy
- Rydberg molecule
- Rydberg state
- A surname.