(mān′sāl′; naut., -səl)
- in a square-rigged vessel, the sail set from the main yard
- in a fore-and-aft-rigged vessel, the large sail set from the after side of the mainmast
See mainsail in American Heritage Dictionary 4
- The principal sail of a vessel.
- A quadrilateral or triangular sail set from the after part of the mainmast on a fore-and-aft rigged vessel.
- A square sail set from the main yard on a square-rigged vessel.
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