Summary : Brulex : A computerized lexical data base for the french language. This paper presents a lexical database developed for experimental research in psycholinguistics. The Brulex system provides orthographic, phonological, grammatical and frequency information for approximately 36 000 French words. It also contains some other useful information to help in selecting experimental materials (uniqueness point, neighborhood count, phonological structure, mean bigram frequency). Key words : experimental psycholinguistics, lexicon, word recognition.