centrefold

US centerfold

/ (ˈsɛntəˌfəʊld) /

noun

a large coloured illustration folded so that it forms the central spread of a magazine
  1. a photograph of a nude or nearly nude woman (or man) in a magazine on such a spread
  2. the subject of such a photograph
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