Galois, Évariste Syllabification: (Ga·lois, Évariste)Pronunciation: /gälˈwä/Definition of Galois, Évariste (1811–32), French mathematician. His memoir on the conditions for solubility of polynomial equations was posthumously published in 1846. Galois, Évariste in other Oxford dictionaries Definition of Galois, Évariste in the British & World English dictionary