Ryd·berg
| \ ˈridˌbərg \
plural -s
Definition of Rydberg
: the Rydberg constant especially when expressed in energy terms with maximum possible value of about 2.179 × 10−11 ergs
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Merriam-Webster unabridged
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Time Traveler for Rydberg
The first known use of Rydberg was in 1954
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