Definitions of topgallant

n a sail set on a yard of a topgallant mast

topgallant sail
Type of:
canvas, canvass, sail, sheet
a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel

n a mast fixed to the head of a topmast on a square-rigged vessel

topgallant mast
Type of:
the mast next above a lower mast and topmost in a fore-and-aft rig

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