Meaning of topgallant sail

topgal'lant sail"

Pronunciation: [key]
— Naut. Naut.
  1. a sail or either of two sails set on the yard or yards of a topgallant mast. Also calledSee diag. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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