1) Weekly journal 
producing cancerous tumours
Production or causation of tumors.
The progression of cytological, genetic, and cellular changes that culminate in a malignant tumor.
<oncology> The causation or production of tumours. ... (16 Dec 1997) ... 
(ong″ko-jen´ә-sis) the production or causation of tumors; called also tumorigenesis. adj., oncogenet´ic., adj.
the development and growth of cancer.
The process by which normal cells turn cancerous. A sequence of cytological, genetic and cellular changes causes the formation and development of tumors. Also called tumorigenesis.
Type: Term Pronunciation: ong′kō-jen′ĕ-sis Definitions: 1. Origin and growth of a neoplasm.
The process of tumor development.
oncogenesis 1. The causation or production of tumors. 2. The generation of or the process of tumor formation.