sub ‧ set /ˈsʌbset/ BrE AmE noun [countable]
a group of people or things that is part of a larger group of people or things
subset of
a small subset of the city’s immigrant population
sub ‧ set /ˈsʌbset/ BrE AmE noun [countable]
a group of people or things that is part of a larger group of people or things
subset of
a small subset of the city’s immigrant population
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012