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A rounded bay window that projects from the face of a wall; also a window having a rounded semicircular member at its head. See also: Chicago window
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
bow window, compass window
A rounded bay window; projects from the face of a wall in a plan which is the segment of a circle.
1.A rounded bay window that projects from the face of a wall; in plan, it forms the segment of a circle; same as bow window.
2. A semicircular oriel window.
3. A window having a rounded, usually semicircular, upper member.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.