n.
Function: noun
Date: 1605
1 a : a particular being or thing as distinguished from a class, species, or collection: as (1) : a single human being as contrasted with a social group or institution <a teacher who works with individual s > (2) : a single organism as distinguished from a group b : a particular person <are you the individual I spoke with on the telephone?>
2 : an indivisible entity
3 : the reference of a name or variable of the lowest logical type in a calculus