A complex is a whole that comprehends a number of intricate parts, especially one with interconnected or mutually related parts; for example, a complex of buildings.

Complex may refer to:

PsychologyEdit

• Complex (psychology), a group of mental factors that are unconsciously associated by the individual with a particular subject and influence the individual's attitude and behavior
  • Electra complex
  • Oedipal complex

BiologyEdit

• Complex (taxonomy), in biology, a cluster of species so closely related that they intergrade, can interbreed, and are difficult to firmly distinguish except at the extremes of their ranges
• Mimicry complex, a complex system of organisms and dependencies involved in a case of mimicry

MedicineEdit

• AIDS dementia complex

Other scientific usesEdit

• Synonym for a complex system which generally includes all interactions between elements

See alsoEdit

• Complexity
• Complexity (disambiguation)
• Complexity theory (disambiguation)
• Theory of complex systems