Chas"sis (?), n. [F. chassis.] (Mil.)
A traversing base frame, or movable railway, along which the carriage of a barbette or casemate gun moves backward and forward. [See Gun carriage.]
© Webster 1913
Chas"sis (?), n.
The under part of an automobile, consisting of the frame (on which the body is mounted) with the wheels and machinery.
© Webster 1913