[ 'tɔ:ʃ(ə)n ]
■ noun
1》 the action of twisting or the state of being twisted, especially of one end of an object relative to the other.
↘the twisting of the cut end of an artery after surgery to impede bleeding.
2》 Mathematics the extent to which a curve departs from being planar.
Derivatives
~al adjective
~ally adverb
~less adjective
Origin
ME: via OFr. from late L. torsio(n-) , var. of tortio(n-) 'twisting, torture', from L. torquere 'to twist'.