Littré, Émile Syllabification: (Lit·tré, Émile)Pronunciation: /lēˈtrā/Definition of Littré, Émile (1801–81), French lexicographer and philosopher. He was the author of the major Dictionnaire de la langue française (1863–77). A follower of Auguste Comte, he became the leading exponent of positivism after Comte’s death. Littré, Émile in other Oxford dictionaries Definition of Littré, Émile in the British & World English dictionary