- The definition of a locus is where a person or thing is located.
An example of locus is the table upon which a glass is sitting.

## locus

noun

*pl.*loci

- a place
- Genetics the position on a chromosome occupied by a particular gene
- Math.
- any system of points, lines, etc. which satisfies one or more given conditions
- a line, plane, etc. every point of which satisfies a given condition and which contains no point that does not satisfy this condition

Origin of locus

L: see local## locus

noun

*pl.*

**lo·ci**

- A locality; a place.
- A center or focus of great activity or intense concentration:
*“the cunning exploitation of loci of power; the insulation from normal American society”**(Clifton Fadiman).* -
*Mathematics*The set or configuration of all points whose coordinates satisfy a single equation or one or more algebraic conditions. - The position that a given gene or genetic marker occupies on a chromosome.

Origin of locus

Latin.## locus

Noun

(*plural* loci)

- A place or locality, especially a centre of activity or the scene of a crime.
- The cafeteria was the locus of activity.

- (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.

- (genetics) A fixed position on a chromosome that may be occupied by one or more genes.

Usage notes

- sometimes confused with
*locust*

Origin

From Latin *locus*.

## locus - Legal Definition

n

Latin

The place or location of a thing or event.