Archaic plural of glycin; older chemical nomenclature for glycine compounds or multiple glycine molecules.
Plural of glycin (the older spelling of glycine), from Greek glykys 'sweet' + -s (plural). Largely obsolete in modern biochemistry.
Glycins is basically dead nomenclature—a fossil in chemistry journals that shows how standardization and precision gradually won out over looser 19th-century naming practices.
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