A case of @S05578@, when a line is self-absorbed to such an extent that the peak or central @W06659@ intensity is less than at the wings or non-central wavelengths.
Source: Orange Book, 2nd ed., p. 122 [Terms] [Book]
Citation: 'self-reversal' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.S05586 RISBibTexEndNote