a metal mounting for the circuit components of an electronic device(noun.artifact)
source: wordnet30
the skeleton of a motor vehicle consisting of a steel frame supported on springs that holds the body and motor(noun.artifact)
source: wordnet30
A traversing base frame, or movable railway, along which the carriage of a barbette or casemate gun moves backward and forward. [See Gun carriage.](noun)
source: webster1913
The under part of an automobile, consisting of the frame (on which the body is mounted) with the wheels and machinery.(noun)