geometric locus

In geometry, a locus refers to the set of all points that satisfy a specific condition. Think of it as a path or a shape formed by points that meet a certain rule.1

For example, the locus of points equidistant from two fixed points is a straight line. Another common example is the locus of points equidistant from a fixed point and a fixed line, which forms a parabola. The term "locus" is Latin for "place," and its plural form is "loci". While "locus" can also mean a center of activity or a specific site in general English, in geometry, it specifically denotes a collection of points defined by a geometric property.12