noun
Rydberg constant
A physical constant used in atomic physics and spectroscopy, named after Johannes Rydberg.
リュードベリ定数は、水素原子のスペクトル線の波長を計算するのに使われる。
The Rydberg constant is used to calculate the wavelengths of spectral lines of the hydrogen atom.
From the name of the Swedish physicist Johannes Rydberg, combined with 定数 (constant).