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Medical Term:


Pronunciation: in-tel'i-jens


  1. A person's aggregate capacity to act purposefully, think rationally, and deal effectively with the environment, especially in relation to the extent of one's perceived effectiveness in meeting challenges.
  2. In psychology, a person's relative standing on two quantitative indices, measured intelligence and effectiveness of adaptive behavior; a quantitative score or similar index on both indices constitutes the operational definition of intelligence.

[L. intelligentia]

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