subset

[suhb-set] /ˈsʌbˌsɛt/
noun
1.
a set that is a part of a larger set.
2.
Mathematics. a set consisting of elements of a given set that can be the same as the given set or smaller.
Origin
1900-05; sub- + set
Examples from the web for subset
  • Each time a subset migrated onward, genetic diversity narrowed.
  • Living four-legged creatures rest and sleep in various postures, but only birds and a subset of mammals rest on folded limbs.
  • Within each of these broad questions is a subset of secondary questions waiting to be explored.
  • As it happens, only a subset of prisoners currently locked away for long periods of isolation would be considered truly dangerous.
  • It's a broad appeal to a range of xenophobic fears of which race per se is a mere subset.
  • Even within that subset there weren't a lot that explained how and why you might want to use some of these things.
  • Even within that subset, there weren't a lot that explained how and why you might want to use some of these things.
  • In fact, economic behavior is only a subset of human behavior.
  • The odds were against our even detecting the plagiarism, since each committee member read an alphabetical subset of applications.
  • However, laying that groundwork will take more than text mining, and certainly more than the subset of textual materials on offer.
British Dictionary definitions for subset

subset

/ˈsʌbˌsɛt/
noun
1.
(maths)
  1. a set the members of which are all members of some given class: A is a subset of B is usually written A⊆B
  2. proper subset, one that is strictly contained within a larger class and excludes some of its members A⊂B
2.
a set within a larger set
Word Origin and History for subset
n.

"subordinate set," 1902, from sub- + set (n.1).

subset in Science
subset
  (sŭb'sět')   
A set whose members are all contained in another set. The set of positive integers, for example, is a subset of the set of integers.