Lazio
geographical name
La·zio
| \ ˈlät-sē-ˌō
\
\
variants:
or Latin Latium \ ˈlā-sh(ē-)əm
\
\
Definition of Lazio
region of central Italy bordering on the Tyrrhenian Sea and traversed by the Tiber River; capital Rome population 5,502,886
Note: Latium was an ancient country inhabited by Latins and is a variant name of the present-day Italian region of Lazio whose boundaries correspond with it.