torsion

中文： 扭转、扭力

1. The act of turning or twisting, or the state of being twisted; the twisting or wrenching of a body by the exertion of a lateral force tending to turn one end or part of it about a longitudinal axis, while the other is held fast or turned in the opposite direction. (countable, uncountable)
2. A finite order element of a group that, when raised to a positive integer power results in the identity element of the group. (countable, uncountable)
3. An element of a homology or cohomology group for which there exists a non-zero integer that, when the element is multiplied by that integer, yields zero. (countable, uncountable)
4. A type of holistic complimentary medicine that involves balancing theoretical energy fields through energy healing, meditation, and similar practices. (countable, uncountable)
5. That force with which a thread, wire, or rod of any material returns, or tends to return, to a state of rest after it has been twisted; torsibility. (countable, uncountable)
6. The stopping of arterial haemorrhage in certain cases, by twisting the cut end of the artery. (countable, uncountable)

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