The Collaborative International Dictionary of English v.0.48:

Intellect \In"tel*lect\, n. [L. intellectus, fr. intelligere,
   intellectum, to understand: cf. intellect. See
   Intelligent.]
   1. (Metaph.) The part or faculty of the human mind by which
      it knows, as distinguished from the power to feel and to
      will; the power to judge and comprehend; the thinking
      faculty; the understanding.
      [1913 Webster]

   2. The capacity for higher forms of knowledge, as
      distinguished from the power to perceive objects in their
      relations; mental capacity.
      [PJC]

   3. A particular mind, especially a person of high
      intelligence; as, he was a great intellect.
      [PJC]

WordNet (r) 3.0 (2006):

intellect
    n 1: knowledge and intellectual ability; "he reads to improve
         his mind"; "he has a keen intellect" [syn: mind,
         intellect]
    2: the capacity for rational thought or inference or
       discrimination; "we are told that man is endowed with reason
       and capable of distinguishing good from evil" [syn: reason,
       understanding, intellect]
    3: a person who uses the mind creatively [syn: intellectual,
       intellect]

The Free On-line Dictionary of Computing (19 January 2023):

INTELLECT

    A query language written by Larry Harris in 1977,
   close to natural English.

   (1995-04-14)