complex

Definition

noun
  1. (in psychiatry)
    a group of ideas which are based on the experience a person has had in the past and which influence the way he or she behaves
  2. a group of items, buildings or organs
    Example He works in the new laboratory complex.
  3. a group of signs and symptoms due to a particular cause.
    See also syndrome
adjective
  • complicated
    Example A gastrointestinal fistula can cause many complex problems, including fluid depletion.
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