Real Dictionary

minority
singular noun: If you talk about a minority of people or things in a larger group, you are referring to a number of them that forms less than half of the larger group, usually much less than half.

minority in American English
the lesser part or smaller number; less than half of a total
adjective: of or pertaining to a minority
noun: the smaller part or number; a number, part, or amount forming less than half of the whole

minority in British English
noun: the smaller in number of two parts, factions, or groups