A negative terminal is the grounded terminal on a car battery, typically marked by a minus (-) sign. It is usually color-coded black. The other terminal is positive, usually color-coded red or orange, and marked with a plus (+) sign. The grounded terminal connects to a grounded source on the vehicle, typically a bolt in the chassis.
also jack-boot (jÄkâ²boÍotâ²) n. 1. a. A stout military boot with a flared top that extends above the knee. b. A stout military boot that has an often studded sole, lacks laces, and extends to mid-calf.
To hunt or fish for with a jacklight: hunters illegally jacking deer. 2. a. To move or hoist by using a jack. Often used with up: jacked the rear of the car to replace the tire. b. To raise (something) to a higher level, as in cost.