D defs.my
Entry 2 senses Webster, 1913

Chassis

/chăs'-ē/ · Chas·sis · IPA /ˈʃæzi/
01 n. A traversing base frame, or movable railway, along which the carriage of a barbette or casemate gun moves backward and forward. [See Gun ca…
  1. 1.
    A traversing base frame, or movable railway, along which the carriage of a barbette or casemate gun moves backward and forward. [See Gun carriage.](Mil.) See: Gun carriage
  2. 2.
    The under part of an automobile or other motor vehicle, consisting of the frame (on which the body is mounted) with the wheels and machinery.