Carcinogen: A substance or agent that causes cancer. Related terms include the adjective "carcinogenic" and the nouns "carcinogenesis" and "carcinogenicity." One of the best-known carcinogens is ionizing radiation.
The International Agency for Research on Cancer has classified some 60 substances and processes as probably or definitely carcinogenic in humans. These substances and processes are divided into three categories -- Agents and groups of agents, Mixtures, and Exposure circumstances -- and they are as follows:
Agents and groups of agents
Aflatoxins, naturally occurring
Arsenic and arsenic compounds
Beryllium and beryllium compounds
Bis(chloromethyl) ether and chloromethyl methyl ether
1,4-Butanediol dimethanesulfonate (busulfan; Myleran)
Cadmium and cadmium compounds
1-(2-Chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea (methyl-CCNU; Semustine)
Chromium [VI] compounds
Methoxypsoralen (methoxsalen) plus ultraviolet radiation
MOPP and other combined chemotherapy including alkylating agents
Mustard gas (sulfur mustard)
Estrogen therapy, postmenopausal
Radon and its decay products
Talc-containing asbestiform fibers
Analgesic mixtures containing phenacetin
Betel quid with tobacco
Mineral oils, untreated and mildly treated
Salted fish (Chinese style)
Tobacco products, smokeless
Tobacco smoke Wood dust
Boot and shoe manufacture and repair
Furniture and cabinet making
Hematite mining (underground) with exposure to radon
Iron and steel founding
Isopropanol manufacturing (strong-acid process)
Painting (occupational exposure)
Strong-inorganic-acid mists containing sulfuric acid (occupational exposure)
Library > Literature & Language > Dictionary ( kÃ¤r-sÄn ' É™-jÉ™n, kÃ¤r ' sÉ™-nÉ™-jÄ•n ' ) n. A cancer-causing substance or agent. carcinogenesis car ' ciÂ·noÂ·gen ...
A carcinogen is a substance capable of causing cancer. The most commonly encountered carcinogens include asbestos, radon, and even...
noun Pathology . any substance or agent that tends to produce a cancer. Carcinogen Definition Find Definitions For Any Word.Get Your Free Dictionary.com Toolbar ...
Ultraviolet (UV) irradiation from sunlight is a known human carcinogen. Ultraviolet photons harm the DNA molecules of living organisms in different ways.
What is a carcinogen? Cancer is caused by changes in a cell's DNA â€“ its genetic "blueprint." Some of these changes may be inherited from our parents, while others may be ...