mizzenmast

The third mast aft on a sailing vessel having three or more masts.

The mast aft of the mainmast on a ketch or yawl.

The mast that supports the mizzen; the aftermost mast of a three-masted vessel.

plural The lower-mast, topmast, and topgallantmast of the mast next abaft the mainmast.

the third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy.

The aftmost mast on a ship having three or more masts

The shorter, after mast of a ship having two masts, such as a ketch or yawl

third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy