Zipper (Effect) : The splitting of the sidewall of a tyre under inflation. The tyre bursts with a long narrow opening, ejecting wire and rubber shrapnel
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}