We consider the family of multi-argument functions called multi-distances, which capture the idea of distance for collections of more than two points in a metric space. Usually, multi-distances are defined among crisp objects. In this note, we propose a multi-distance defined between fuzzy numbers which satisfies the following conditions: it must take into account all distances between all pairs of fuzzy data, must be regular and easy to compute.

multi-distance, regularity, fuzzy numbers.