Tumour 2 : A swelling, enlargement, or an abnormal mass of tissue in which the growth of cells is uncontrolled. A tumour can either be benign (not malignant) or malignant (cancerous). A tumour is also called a 'neoplasm
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}