mainmast

• Nom désignant le mât principal ou le plus haut d'un navire à voiles ayant deux mâts ou plus.

A noun referring to the principal or tallest mast on a sailing ship that has two or more masts.

1. Chief mast of a sailing vesselC1formal

   The principal mast on a sailing ship that has two or more masts, typically the tallest and most important.

   grand mât

   • The sailors climbed the mainmast to adjust the sails.
   • The mainmast of the galleon was struck by lightning.
   • During the storm, the mainmast cracked under the pressure.