dragline excavator UK /ˈdɹæɡlaɪn ˈɛkskəˌveɪtə/US /ˈdɹæɡlaɪn ˈɛkskəˌveɪtɚ/ noun1 •Any of several very large vehicles used for lifting, especially in the process of mining: basically an excavator which drags its bucket to fill it.Teams of horses and a dragline excavator, an earth mover atop skids, worked to repair, strengthen, and raise older levees, create a new, two-mile long river channel, and build new levees. — 2013 formsdragline excavators