(of a classical temple) having a portico on the front with the columns in front of the antae.
noun
2.
a prostyle building or portico.
Origin: 1690–1700; (adj.) < Latinprostȳlos < Greekpróstȳlos with pillars in front, equivalent to pro-pro-2 + -stȳlos-style2; (noun) < Greekpróstȳlon, noun use of neuter of próstȳlos