chassis ground; frame ground
Technical term in electronics and electrical engineering for grounding the metal case or frame of a device. Wasei-eigo from English 'case earth'.
wasei-eigo (Japanese-coined English), from case earth
This device must have its chassis grounded, or there is a risk of electric shock.
Connect the ground wire to the chassis ground terminal.
Variant with interpunct; less common but still seen in technical writing.
Wasei-eigo from English 'case earth', referring to grounding the metal case or frame of electrical equipment.