(literally) Having living quarters in the forecastle / Describing seamen rather than officers

the fruit or mast of the beech tree; beechnuts

The provision of powered access to a system of scaffolding by means of a platform fixed to a vertical mast attached to the side of the building under construction or maintenance

plural of mast cell

A resident cell of connective tissue that contains many granules rich in histamine and heparin.

(botany) An intermittently-occurring, synchronous production of large amounts of seed by a population of plants.

Alternative spelling of jiggermast

Alternative spelling of mainmast

Alternative spelling of jiggermast

Alternative spelling of foremast