Lay 4 : (n) (1) The spiral of strands in a wire rope either to the right or to the left, as viewed from above. (2) A term used to measure wire rope, signifying the linear distance a wire strand covers in one complete rotation around the rope
US Department of Labor, Occupational Safety & Health Administration (OSHA), Oil and Gas Well Drilling and Servicing eTool, Washington, DC. This is an abridged version of the Dictionary of Petroleum Terms provided by Petex and the University of Texas Austin, USA 2001. http://www.osha.gov/SLTC/etools/oilandgas/glossary _of_terms/glossary_of_terms_a.html, (Oil Well Drilling Sci and Tech - Amer) {492}