JACKKNIFED Meaning and
Definition
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Jackknifed is a verb that refers to the act of a vehicle folding in on itself, resembling the shape of a folding pocket knife or a jackknife. It commonly describes a situation in which a truck or trailer loses control and skids into a severe angle, forming a V-shape with the cab and the trailer.
When a vehicle jackknifes, it typically veers off its intended path and the front and rear parts move in opposite directions due to a sudden or extreme maneuver. This can occur when the wheels lose traction on a slippery surface, when the driver applies excessive braking force, or when attempting to take a sharp turn at high speeds.
The action of jackknifing is not limited to any particular type of vehicle, but it is most commonly associated with articulated trucks, such as tractor-trailers or semi-trailers. Due to their size and weight, these vehicles are more susceptible to jackknifing incidents. A jackknifed truck poses significant risks to other road users and can cause traffic disruptions or accidents.
To mitigate the risk of jackknifing, drivers are advised to drive cautiously, especially in adverse weather conditions, and to maintain proper distance from other vehicles. Additionally, anti-lock braking systems and electronic stability control can help prevent or minimize jackknifing by automatically applying brake pressure and improving vehicle stability.
Common Misspellings for JACKKNIFED
Etymology of JACKKNIFED
The word "jackknife" is derived from the combination of two words, "jack" and "knife". The term originally referred to a folding pocket knife, also known as a "jackknife", that could be easily carried in a pocket.
The verb "jackknife", meaning to fold like a pocket knife, was first used in the early 18th century. Over time, the term began to be used metaphorically to describe the folding or collapsing of various objects or structures.
In the context of road accidents, "jackknifed" is used to describe a situation in which a vehicle, typically a truck or a trailer, skids or swerves and ends up with its cab and trailer forming an acute angle, resembling the folding motion of a pocket knife. This term has been in use since at least the mid-20th century.
Similar spelling words for JACKKNIFED
Conjugate verb Jackknifed
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