subset (plural subsets)
- (set theory) With respect to another set, a set such that each of its elements is also an element of the other set.
The set is a both a subset and a proper subset of while the set is a subset of but not a proper subset of .
- A group of things or people, all of which are in a specified larger group.
We asked a subset of the population of the town for their opinion.
- (set theory): The subset relation is denoted ⊆ (⊂ for proper subset), and one writes A ⊆ B for "A is a subset of B".
- proper subset (subset that is strictly less than the given other set)
set whose elements are within another given set
group contained in a larger group