Mesopotamia

nouns

the land between the Tigris and Euphrates; site of several ancient civilizations; part of what is now known as Iraq
Mesopotamia
is a part of
a republic in the Middle East in western Asia; the ancient civilization of Mesopotamia was in the area now known as Iraq
Al-Iraq, Irak, Iraq, Republic of Iraq
is an instance of (narrower)
a demarcated area of the Earth
geographic area, geographic region, geographical area, geographical region