broad on the quarter

broad on the quarter

[¦brȯd ȯnthə ′kwȯrd·ər]
(navigation)
Bearing 135° relative (broad on the starboard quarter) or 225° relative (broad on the port quarter); if the bearings are approximate, the expression “on the quarter” is used.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.