English

A many-to-one mapping of members (dots) of the set on the left to members of the set on the right

Adjective

many-to-one ‎(not comparable)

1. (mathematics, logic, of a relationship between two sets) having the property that many elements of one set may be assigned by the relationship to one element in the other set, and that a given element in the first set can be assigned by only one member of the second set.
2. From a many sources to a single recipient.

   Traditional management structure consisted of a hierarchical tree of many-to-one communications (from subordinate to manager), with each manager often significantly filtering what he passed on to his manager.

Synonyms

• (mathematics, logic): many-one

Coordinate terms

• one-to-one, one-to-many, many-to-many