In classical architecture, the stepped stone platform or foundation base upon which a Greek temple or other structure stands.
From Greek krepis (foundation, base) + -doma (from domos, house/structure), literally meaning 'base-house' or 'foundation-structure,' referring to the platform base of temples.
The Parthenon's crepidoma consists of three perfectly calculated steps called a 'stereobate'—ancient Greek architects understood that these platforms weren't just functional, they created optical illusions that made temples appear more graceful and level.
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