Definition of underframe in English:

underframe

noun

  • The supporting frame or substructure of something, in particular a vehicle or piece of furniture.

    • ‘The frames comprise a concealed underframe to which legs in matt, shot-blasted stainless steel are attached by means of hidden screw fittings.’
    • ‘Its richly decorated interior is based on papier mache panels fixed to a wooden underframe in turn attached to the cast-iron skeleton.’
    • ‘These cars had steel underframes and wood and steel car bodies.’

Pronunciation

underframe

/ˈʌndəfreɪm/