Definition of underframe in English:

underframe

Line breaks: under|frame
Pronunciation: /ˈʌndəfreɪm
 
/

noun

The supporting frame or substructure of something, in particular a vehicle or piece of furniture.
More example sentences
  • The frames comprise a concealed underframe to which legs in matt, shot-blasted stainless steel are attached by means of hidden screw fittings.
  • These cars had steel underframes and wood and steel car bodies.
  • Its richly decorated interior is based on papier mache panels fixed to a wooden underframe in turn attached to the cast-iron skeleton.

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Word of the day grammarian
Pronunciation: grəˈmɛːrɪən
noun
a person who studies and writes about grammar