Grassmann's law

English Etymology en German linguist Hermann Grassmann = 1809 1877. Proper noun en phonology A dissimilatory phonological process in Ancient Greek and Sanskrit, according to which an aspirated consonant loses its aspiration if it is followed by another aspirated consonant in the next syllable. en optics An empirical law about human colour perception, stating that chromatic sensation can be described in terms of an effective stimulus consisting of linear combinations of different light colours. Translations sound law law about colour perception en eponyms