From Longman Dictionary of Contemporary Englishflatbedflat‧bed /ˈflætbed/ adjective [only before noun]having a flatsurface to put something ona flatbed scannera flatbed truck —flatbed noun [countable]Examples from the Corpusflatbed• Somewhat surprisingly one of the cheapestscanners, the Thunderscan, can outperform most of the expensiveflatbed machines in this respect.• Cheaper flatbedplotters, capable of plotting on sheets of A4 or A3 size paper, can be interfaced to personal computers.• They came with two flatbedtrucks and they emptied the apartment.• Several at the scene said low flatbed trucks had been stuck at the crossing in the past.