Gender calls into question psychoanalysis by forcing it to discuss some of the criticisms that have been leveled at it. But the point that current discussions have reached is not always satisfactory. In drawing on queer criticism, can the modern day emancipation of gender be integrated into the epistemological field of psychoanalysis? What are the coordinates for a possible definition of gender in psychoanalysis? This article traces out some points of articulation for the theoretical discussion to which gender gives rise, so as to try to offer a possible definition of it on the basis of what it questions in psychoanalysis.