Definition of mainmast in English:
The principal mast of a ship, typically the second mast in a sailing ship of three or more masts.
- He saw how close to the mainmast the commodore was and grinned suddenly.
- The mainmast groaned slightly under the strain of the wind-filled sails.
- Dolphin pulled past them and assaulted the outside schooner, her guns taking out the mainmast.
Definition of mainmast in:
- British & World English dictionary