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.
[boot] /but/. noun. 1. a covering of leather, rubber, or the like, for the foot and all or part of the leg. 2. Chiefly British. any shoe or outer foot covering reaching to the ankle. 3. an overshoe, especially one of rubber or other waterproof material.