underframe

Noun
  1. The internal supporting structure that gives an artifact its shape (synset 104233599)
    "the building has a steel skeleton"
    is a type of: supporting structure - a structure that serves to support something
    subtypes:
    • chassis - the skeleton of a motor vehicle consisting of a steel frame supported on springs that holds the body and motor
    • hoop - a light curved skeleton to spread out a skirt
    is a part of:
    • aircraft - a vehicle that can fly
    • building, edifice - a structure that has a roof and walls and stands more or less permanently in one place
    • ship - a vessel that carries passengers or freight
    same as: frame, skeletal frame, skeleton

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