crescent
1. the biconcave shape of the moon in its first or last quarters
2. Chiefly Brit a crescent-shaped street, often lined with houses of the same style
3. a. the emblem of Islam or Turkey
b. Islamic or Turkish power
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Crescent
Shape similar to the visible part of the moon in its first or last quarter; also the shape of a row of townhouse fronts constructed in the approximate shape of a circular or elliptical arc.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
crescent
A building or series of buildings whose façades follow a concave arc of a circle or ellipse in plan.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.