n. [ F. colonnade, It. colonnata, fr. colonna column. See Colonel. ] (Arch.) A series or range of columns placed at regular intervals with all the adjuncts, as entablature, stylobate, roof, etc. [ 1913 Webster ]

☞ When in front of a building, it is called a portico; when surrounding a building or an open court or square, a peristyle. [ 1913 Webster ]

adj. having a series of columns arranged at regular intervals; furnished with a colonnade. [ WordNet 1.5 ]