Cyabnosis : Bluish discoloration of the skin and mucous membrane due to reduced level of oxygen in the blood. May be peripheral due to poor circulation or central due to failure of oxygenation
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}