Locus
WordNet
noun
(1) The set of all points or lines that satisfy or are determined by specific conditions
"The locus of points equidistant from a given point is a circle"
(2) The specific site of a particular gene on its chromosome
(3) The scene of any event or action (especially the place of a meeting)
WiktionaryText
Noun
- A place or locality, especially a centre of activity or the scene of a crime.
- The cafeteria was the locus of activity.
- 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.
- (genetics) A fixed position on a chromosome that may be occupied by one or more genes.