Ste're·o·bate noun [ Greek stereo`s solid + ... that treads or covers, akin to ... base; confer French stéréobate .] (Architecture) The lower part or basement of a building or pedestal; -- used loosely for several different forms of basement. Found on http://www.encyclo.co.uk/webster/S/194
In architecture a stereobate is the lower part or basement of a building or pedestal. The term is used loosely for several different forms of basement. Found on http://www.probertencyclopaedia.com/browse/TS.HTM
the foundation or base upon which a building or the like is erected. · the solid platform forming the floor and substructure of a classical temple; crepidoma; podium. Cf. Found on https://www.infoplease.com/dictionary/stereobate