topsail

  1. Noun.  (nautical) A sail or either of the two sails rigged just above the course sail and supported by the topmast on a square-rigged sailing ship.
  2. Noun.  (nautical) In a fore-and-aft -rigged sailing boat, the sail that is set above the gaff at the top part of the mast.

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This entry was last updated on RefTopia from its source on 3/20/2012.