Torsion

The word means twisted.

• In biology, usually refers to the spiral shape of Gastropod body and shells, seen easily in the garden snail.
• In mathematics, the term torsion has several meanings, mostly unrelated to each other.
  • Torsion of curves
  • Torsion of connection
  • Torsion tensor
  • Torsion (abstract algebra)
  • Torsion (modules)
  • Torsion (topology)
• In medicine torsion can refer to
  • Testicular torsion
  • Bloat
• Torsion (mechanics)
• Torsion coefficient
• Torsion pendulum
• Torsion spring or -bar