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


  • Locus of control, in industrial 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
  • Root locus, a diagram visualizing the position of roots as a parameter changes
  • Locus (medicine), the "place" on the body where a pathogen enters

Philosophy, rhetoric, and literary theory[edit]



  • Loci (band), an alt-rock band from Bristol, United Kingdom



  • Locus (magazine), a monthly trade journal devoted to the science fiction and fantasy publishing industry that contains news, sales trends, author biographies, convention coverage, book reviews, and comprehensive lists of upcoming publications and reprints
    • Locus Award, presented to the winners of Locus magazine's annual readers' poll
  • Locus Trading, a trading and tracking letter that follows billionaires


Distinguish from[edit]