Tet'ra·style adjective [ Latin tetrastylon , Greek ... with four pillars in front; te`tra- (see Tetra- ) + ... a column.] (Architecture) Having four columns in front; -- said of a temple, portico, or colonnade. -- noun A tetrastyle building. Found on http://www.encyclo.co.uk/webster/T/35
In architecture, a tetrastyle building is one which has four columns in front. The term is used to describe temples, porticos, or colonnades. Found on http://www.probertencyclopaedia.com/browse/TT.HTM