Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun direct_sum

1 sense of direct sum

Sense 1
direct sum -- (a union of two disjoint sets in which every element is the sum of an element from each of the disjoint sets)
       => union, sum, join -- (a set containing all and only the members of two or more given sets; "let C be the union of the sets A and B")