"Derived from Oxford English Dictionary, jack 10.a." . "Incomplete" . "LIFTING-JACK" . "2010.01.14" . "A 'lifting device', usually portable, for lifting heavy weights by force acting from below; in the commonest form, having a rack and a pinion wheel or screw and a handle turned by hand." . "mvsen" . "JACK-SCREW" . . "RDS" . "mvsen" . "LIFTING-JACK" . "RDS1325271521" .