1. a triangular fore-and-aft sail with its foot along the gaff and its luff on the topmast; [syn: gaff topsail, fore-and-aft topsail]
WordNet (r) 3.0 (2006):
fore-and-aft topsail
n 1: a triangular fore-and-aft sail with its foot along the gaff
and its luff on the topmast [syn: gaff topsail, fore-
and-aft topsail]