plural of main-mast

plural of mast coat

plural of mast seeding

plural of royal mast

(nautical) The fourth and highest part of the mast from the deck, commonly made in one piece with the topgallant mast.

A year in which a certain species or population of plants produces a very large quantity of seeds or fruit.

plural of mast year

plural of meritorious mast

(naval) A modern version of the mast (naval disciplinary hearing) in which the commanding officer singles out a crewmember for formal praise.

(aviation) A dangerous condition where the mast of a helicopter contacts adjacent fixed structure while rotating, damaging the mast and potentially resulting in the separation of the main rotor from the helicopter.