Aiming to contribute to the overcoming of the equivocity in which is involved the concept of interdisciplinarity; we begin by a proposal of stabilization of its meaning. In a second moment, we try to explain the recursive use of this concept by the search of a positive answer for especialization, that is, by the attempt of overcoming its serious cultural, institutional and heuristic costs. At last, we stress the thesis according to which interdisciplinarity corresponds to a deep epistemological transformation which is taking place nowadays and we indicate those we
consider to be the its two main consequencies: the enlargment of the concept of science and the
transformation of University.