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.
This sense of bootless has nothing to do with footwear. The boot in this case is an obsolete noun that meant use or avail.. That boot descended from Old English bÅt and is ultimately related to our modern word better, whose remote Germanic ancestor meant literally of more use..