Torsion 2 : A loading mode in which a load is applied to a structure in a manner that causes it to twist about an axis, subjecting the structure to a combination of shear, tension, and compressive loads
WorkCover Corporation of South Australia (Safer Industries), Hospitality Industry Occupational Job Dictionary, Hotels and Motels (An analysis of regular tasks and human movements common to workers and employers working in hotels and motels), Glossary, Australia 2004. ISBN: 1 877016 20 9, https://www.safework.sa.gov.au/uploaded_files/hosp JobDict1HotelsMotels.pdf, (Hlth and Sfty - Brit) {698}