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- n. Plural form of polyad.
Sorry, no etymologies found.
Spectrosc. 208, for the near-infrared and visible spectrum of water vapor, covering the 2º C ±, 3º, 3º C±, and 4º polyads, are combined with accurate calculations of weaker lines to provide a new, comprehensive linelist of water transitions for the spectral region 8600–15 000 cm¡1.
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