(pō′dē·əm) noun plural ·di·a (-dē·ə)
1. Archit. a A solid basement or pedestal supporting a structure, as a Roman temple. b The parapet surrounding the arena of an ancient amphitheater or circus, and hence also the platform or path behind or above it.
2. A dais, platform, or stage; especially, the platform for the conductor of an orchestra.
3. Zool. A foot, or any tootlike structure. [<L <Gk. podion, dim. of pous, podos foot]

A footlike part: pseudopodium.