Definitions for jus soliˈsoʊ laɪ, -li
Random House Webster's College Dictionary
jus′ so′liˈsoʊ laɪ, -li(n.)
the principle that the country of citizenship of a child is determined by its country of birth.
Origin of jus soli:
1900–05; < L: right of soil (land)
the principle that a person's nationality at birth is determined by the place of birth