ground loop

noun Aeronautics.
a sharp horizontal loop performed, usually involuntarily, while touching the ground.

Origin:
1920–25

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
ground loop
 
n
a sudden uncontrolled turn by an aircraft on the ground, while moving under its own power

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
Ground loop accidents were common and some resulted in serious injuries.
Each heat pump package is plumbed in parallel with the ground loop.
Ground loop impedances are measured before installation is released for
  operation.
The cost of the unit and the placement of the ground loop have been major
  barriers to wide market acceptance, however.
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