Each group of lines may be accounted for by transitions of the valence electron between a polyfold level of one type and another polyfold level of the same or different type.
Source: wiktionary
Polyfold
Synonyms for "polyfold"
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Sample sentences
9 total sentences available.
Multiplicities of the energy states of the polyfold spectral terms depend on the valence electrons of the atoms.
Source: wiktionary
These levels comprise the components of spectral terms which are usually polyfold, but it is sometimes difficult or impossible without Zeeman effects or similar criteria to fix the absolute values of the quantum numbers which define the types
Source: wiktionary
Sommerfeld invented " inner quantum numbers " to distinguish the levels of polyfold spectral terms.
Source: wiktionary
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.