What is the meaning of Locus?

A place or locality, especially a centre of activity or the scene of a crime.

The set of all points whose coordinates satisfy a given equation or condition.

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

A passage in writing, especially in a collection of ancient sacred writings arranged according to a theme.

locus

place, spot (a specific location)

a passage of literature

a region or general geographic area

opportunity, cause, occasion, grounds

locus

Source: wiktionary.org