Main Entry: id
Pronunciation: \'id\
Function: noun
Etymology: New Latin, from Latin, it
Date: 1924

The one of the three division of the psyche in
psychoanalytic theory that is completely unconscious
and is the source of psychic energy derived from
instinctual needs and drives. The id supplies the energy
for the development and continued functioning of
conscious mental life, though the working processes
of the id itself are completely unconscious in the adult
(less unconscious in the child). In waking life it belies
its content in slips of the tongue, wit, art, and other
at least partly nonrational modes of expression.
-- compare ego, superego