an alloy of about 60 percent copper and 40 percent zinc, with traces of lead, tin, arsenic, and iron, used in marine and steam-generating equipment.
noun 1. 2 (def 5).
noun 1. an astronomical observatory located in Washington, D.C., operated by the U.S. government, and responsible for the U.S. time service.
noun 1. supplies for warships. 2. various products of the pine tree, as resin, pitch, or turpentine, used in building and maintaining wooden ships.
/ˈnævɑː/ noun 1. a system of air navigation in which a ground radar station relays signals to each aircraft indicating the relative positions of neighbouring aircraft