flatbed /ˈflætˌbɛd/noun 4adjective 1verb 1forms 3 noun4 •An open freight vehicle with no sides, designed to carry heavy or outsized loads. •A railway freight car with no sides; a flatcar.The Rotrac E2 shunter was built by German manufacturer Zwiehoff and has been subject to a 14-month trial to prove it can replace diesel traction for moving flatbed wagons in and out of the depot. — 2021 •Clipping of flatbed trolley. •A document scanner with a flat bed. adjective1 •Having a flat bed.I can't scan the whole document quickly because I only have a flatbed scanner.The accident left the contents of a flatbed trailer scattered across all three lanes. verb1 •To transport by flatbed.Tatiana went from working the pulley that lifted the treadless tank and placed it on tread, to painting the red star on a finished tank ready to be flatbedded and put into production. — 2000 formsflatbedded · flatbedding · flatbeds