jackknifing
Truck bending dangerously
Jackknifing is when a truck and its trailer fold against each other at the hitch, forming a shape like a closing pocketknife.
It typically happens when the trailer swings forward during braking or on slick roads: The semi jackknifed on the icy highway.
The term extends to any similar folding motion—a diver jackknifing in midair, or someone bending sharply at the waist.
Forceful contact between objects
- crashSudden violent impact
- wreckDestroyed vessel or vehicle
- pileupSequential vehicular collision
- rolloverVehicle flipping accident
impact · smashup · rear-end · casualty · fatality · injury · emergency · rescue
Movable connecting joint
- articulationClear vocal expression
- flexureA bend or curve
- bendCurve or flex
- angleGeometric measure of rotation
pivot · joint · crease · V-shape · closure · blade · pocket-knife · mechanism
Cab-and-trailer cargo vehicle
- semiLarge freight truck
- 18-wheelerLarge articulated cargo truck
- rigEquipment arrangement or vehicle
- articulatedHaving segments that bend
cab · hitch · coupling · freight · haulage · long-haul · interstate · convoy
Repeated random selection method
- bootstrappingSelf-starting without external input
- cross-validationResampling method for model assessment
- estimatorSample-based inference rule
Abrupt directional change
- skidUncontrolled lateral slide
- fishtailRear-end lateral skid
- overcorrectionExcessive corrective action
- brakingReducing speed deliberately
sliding · veering · spinout · hydroplane · traction · steering · wheels · axle
Long battlefield spear
- tuckFold into concealment
- springboardFlexible platform for jumping
- platformRaised flat structure
- somersaultFull-body forward rotation
twist · entry · splash · form · execution · competition · Olympics · diver
collision
Forceful contact between objects
rollover · impact · smashup · rear-end · casualty · fatality · injury · emergency · rescue · paramedics
hinge
Movable connecting joint
- articulationClear vocal expression
- flexureA bend or curve
- bendCurve or flex
angle · pivot · joint · crease · V-shape · closure · blade · pocket-knife · mechanism · snap
tractor-trailer
Cab-and-trailer cargo vehicle
- semiLarge freight truck
- 18-wheelerLarge articulated cargo truck
- rigEquipment arrangement or vehicle
articulated · cab · hitch · coupling · freight · haulage · long-haul · interstate · convoy · lorry
resampling
Repeated random selection method
- bootstrappingSelf-starting without external input
- cross-validationResampling method for model assessment
- estimatorSample-based inference rule
swerve
Abrupt directional change
- skidUncontrolled lateral slide
- fishtailRear-end lateral skid
- overcorrectionExcessive corrective action
braking · sliding · veering · spinout · hydroplane · traction · steering · wheels · axle · momentum
pike
Long battlefield spear
- tuckFold into concealment
- springboardFlexible platform for jumping
- platformRaised flat structure
somersault · twist · entry · splash · form · execution · competition · Olympics · diver · aerial
jackknifingpencil dive
Rigid vertical water entry
spread eagle · laid out · extension · unbending · ramrod straight
jackknifingstraightening
Making something not crooked
extending · unfurling · stretching out · lying flat · spreading out