(nautical) A removable spar extending from the mast to the jib clew used to control the position and shape of the sail when broad reaching or running.

Of or relating to bruxism.

(aviation, travel, initialism) Medical Fitness for Air Travel

An American plant, Allium tricoccum, related to the onion; a wild leek. / (Appalachia) A promiscuous man or woman. / (Appalachia, derogatory) A worthless person.