the GNU version of the Collaborative International Dictionary of English
n. A series or range of columns placed at regular intervals with all the adjuncts, as entablature, stylobate, roof, etc.
The Century Dictionary and Cyclopedia
n. In architecture, any series or range of columns placed at certain intervals, called intercolumniations, from one another, such intervals varying according to the requirements of art and utility, and of the order employed.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a structure composed of a series of arches supported by columns
n. structure consisting of a row of evenly spaced columns
Word Usage
"I had better luck just below Trafalgar Square, where the Old Admiralty Building stands intact, screened off behind a handsome neoclassical colonnade from the broad avenue of government buildings called Whitehall."