- a mast fixed to the head of a topmast on a square-rigged vessel.
Origin of topgallant mast
Examples from the Web for topgallant mast
Historical Examples of topgallant mast
Mulford soon had the reef out, and the sail distended to the utmost, while the topgallant-mast was soon up and fidded.
Ay, ay; I've sprung my topgallant-mast, and think this a good occasion to get another up in its place.
The topgallant-mast still reared its taper form high above me, and the worst was yet to come.Hudson Bay
A yet smaller mast, elevated through irons at the head of the topgallant-mast; but more generally the two are formed of one spar.
The mast-rope employed to sway up a top-mast or topgallant-mast, in order to fix it in its place, or lower it.