1) Duodecastyle 1) Having 12 columns 
temple where the portico has twelve columns in front, as in the portico added to the Temple of Demeter at Eleusis, designed by Philo, the architect of the arsenal at the Peiraeus.[20]
• (n.) A dodecastyle portico, or building. • (a.) Having twelve columns in front.
Do·dec'a·style adjective [ Greek ... twelve + ... column: confer French dodécastyle .] (Architecture) Having twelve columns in front. -- noun A dodecastyle portico, or building. 
In architecture the term dodecastyle refers to a structure having twelve columns in front. It is used to describe a temple, portico, or the like.
having 12 columns. · (of a classical temple or building in the style of one) having 12 columns on one or either front.