topgallant sail: Meaning and Definition of

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.