a binding, as for a notebook or booklet, in which the pages are fastened together by a spiral of wire or plastic that coils through a series of holes punched along one side of each page and the front and back covers.
Origin of spiral binding
First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
bookbinding a method of securing the pages of a publication by passing a coil of wire through small holes punched at the back edge of the covers and individual pages
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012