Meaning & Definition of word "Locus"

noun:

• 1. A particular position or place where something occurs or is situated.
  • Example: The locus of the study was a small town in the Midwest.
• 2. In mathematics, the set of all points that satisfy a certain condition or equation.
  • Example: The locus of points equidistant from a fixed point forms a circle.
• 3. In genetics, a specific, fixed position on a chromosome where a particular gene or genetic marker is located.
  • Example: The research focused on a gene locus associated with increased height.
• 4. A place or locality, especially in reference to an area of expertise or influence.
  • Example: The conference served as a locus for scholars in the field of environmental science.