Mo·nop'ter·al adjective [ Greek ... with a row of pillars only; mo`nos alone, only + ... feather, wing, also, a row of pillars: confer French monoptère .] (Architecture) Round and without a cella; consisting of a single ring of columns supporting a roof; -- said esp. of a temp... Found on http://www.encyclo.co.uk/webster/M/96
In architecture the term monopteral is applied to temples which are round and without a cella; consisting of a single ring of columns supporting a roof. Found on http://www.probertencyclopaedia.com/browse/TM.HTM