quantum defect
noun
A number representing the degree to which an energy level of an atom with a single valence electron is displaced relative to the corresponding level of the hydrogen atom, being the amount by which the actual principal quantum number of the level exceeds the effective value of the number.
Origin
Early 20th century; earliest use found in Astrophysical Journal.
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- multifloral
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- multiflorous
- multiflowered
- multi-flue
- multifocal
- multifocally
- multifoil
- multifoiled
- multifold
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- multiform
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- multifractal
- multi-frequency
- multi-fuel
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- multifunction