Medical Dictionary

1id

noun \ˈid\

Medical Definition of ID

:  the one of the three divisions of the psyche in psychoanalytic theory that is completely unconscious and is the source of psychic energy derived from instinctual needs and drives—compare ego, superego
May 29, 2015
bodacious Hear it
unmistakable, remarkable, or voluptuous
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears