locus

Etymology

Borrowed from Latin locus.

noun

1. A place or locality, especially a centre of activity or the scene of a crime.
   The cafeteria was the locus of activity.
2. (mathematics) The set of all points whose coordinates satisfy a given equation or condition.
   A circle is the locus of points from which the distance to the center is a given value, the radius.
3. (genetics) A fixed position on a chromosome that may be occupied by one or more genes.
4. (chiefly in the plural) A passage in writing, especially in a collection of ancient sacred writings arranged according to a theme.