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The word locus (plural loci) is Latin for "place". It can mean:


  • Locus of control, in personality psychology, having an internal or external locus of control
  • Locus (genetics), the position of a gene (or other significant sequence) on a chromosome
  • Locus (mathematics), the set of points satisfying a particular condition, often forming a curve
  • Locus (medicine), the "place" on the body where a pathogen enters

Philosophy, rhetoric, and psychologyEdit

  • The method of loci is a mnemonic system based on places.
  • A Locus (rhetoric) is another name for a literary or rhetorical topos, a method of constructing an argument.


  • LOCUS (Level of Care Utilization System), a clinical level of care placement tool for psychiatric and addictions services, developed by the American Association of Community Psychiatrists

Distinguish fromEdit

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