WordReference Random House Unabridged Dictionary of American English © 2020
gaff′ top′sail, [Naut.]
- Nautical, Naval TermsAlso called fore-and-aft topsail. a jib-headed fore-and-aft sail set above a gaff.
- Nautical, Naval Termsa quadrilateral fore-and-aft sail set above the spanker of a bark, between the gaff of the spanker and an upper gaff.
'gaff topsail' also found in these entries: