0 present participle of jackknife
1 If a truck that has two parts jackknifes, one part moves around so far towards the other part that it cannot be driven:
Single locus values were obtained by jackknifing over populations and overall values by jackknifing over loci.
The number of accidents in which jackknifing occurred was 447 in 1973.
Other action under consideration includes the introduction of new requirements for braking to reduce the risks of jackknifing.
This does not of course mean that jackknifing was necessarily a cause of these accidents.
Jackknifing was not necessarily the cause of these accidents.
But it should be pointed out that not all the 211 deaths were the result of jackknifing, but just with articulated vehicles.
Is he aware that there are an increasing number of accidents by jackknifing of these articulated vehicles, many of them travelling greatly in excess of the speed limit?
They have advanced safety systems, including specialized couplers designed to keep trains from rolling over, jackknifing, or derailing during a collision.
