adj. & n.
--adj.
1. single.
2 particular, special; not general.
3 having a distinct character.
4 characteristic of a particular person.
5 designed for use by one person.
--n.
1. a single member of a class.
2 a single human being as distinct from a family or group.
3 colloq. a person (a most unpleasant individual).
Etymology: ME, indivisible, f. med.L individualis (as IN-(1), dividuus f. dividere DIVIDE)