(among the ancient Babylonians and Assyrians) a temple of Sumerian origin in the form of a pyramidal tower, consisting of a number of stories and having about the outside a broad ascent winding round the structure, presenting the appearance of a series of terraces.
zig·gu·rat (zĭg'ə-rāt') n. A temple tower of the ancient Assyrians and Babylonians, having the form of a terraced pyramid of successively receding stories.
[Akkadian ziqqurratu, temple tower, from zaqāru, to build high; see zqr in Semitic roots.]