• Ability to think and use information.
  The Omaha System
  Omaha Systems, 2005
• Intellectual or mental process whereby an organism obtains knowledge.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• Mental process of knowing and becoming aware; function is closely associated with judgment.
  Sadock's Comprehensive Glossary of Psychiatry and Psychology
  BJ Sadock Titles Press, 2012
• The act or process of knowing, including awareness, judgement, perception, reasoning, and conceiving.
  CRISP Thesaurus
  National Institutes of Health, 2006
• The mental process of knowing, thinking, learning and judging; the psychological result of perception and learning and reasoning.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• The mental process of thinking, learning, remembering, being aware of surroundings, and using judgment.
  NCI Dictionary of Cancer Terms
  U.S. National Cancer Institute, 2021
• The operation of the mind by which an organism becomes aware of objects of thought or perception; it includes the mental activities associated with thinking, learning, and memory.
  Gene Ontology Dictionary
  Gene Ontology Consortium, 2021
• Cognition, the states and processes involved in knowing, which in their completeness include perception and judgment. Cognition includes all conscious and unconscious processes by which knowledge is accumulated, such as perceiving, recognizing, conceiving, and reasoning. Put differently, cognition...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2020