Definition of carcinogen in English:



  • A substance capable of causing cancer in living tissue.

    • ‘The combination of cigarette smoking and exposure to many occupational carcinogens increases risk of cancer.’
    • ‘These chemicals include known or probable carcinogens, neurotoxins and reproductive toxins.’
    • ‘The scientists also carried out animal trials on rats fed on ginger to establish if it could protect against cancer causing carcinogens.’
    • ‘Individuals can decrease their cancer risk from certain carcinogens by making lifestyle changes.’
    • ‘A carcinogen does not cause cancer by itself, but only in interaction with a host.’
    • ‘In addition, those who have an inherited predisposition to cancer may be more susceptible to environmental carcinogens such as radiation.’
    • ‘It has been suggested that oestrogen might be a complete carcinogen capable of causing genetic alterations and tumour initiation.’
    • ‘After a period of six weeks, the rats exposed to the colon carcinogen had about half the number of pre-cancerous growths in their colons compared to rats on a normal diet.’
    • ‘It is certainly terrorizing that such toxins and carcinogens have been poisoning us for so long and continue to do so.’
    • ‘There are a lot of registered substances that are known carcinogens.’
    • ‘It is a multisite carcinogen, and it causes tumors in the lung, skin, urinary bladder, and most likely in other sites, in adults.’
    • ‘Unfortunately, alcohol serves as a perfect solvent to help all those carcinogens affect your mucus membranes.’
    • ‘And are environmental carcinogens, which are a particular interest of yours, showing up in occupations?’
    • ‘There is a greater amount of nicotine in both cigars and pipe tobacco and a lot of carcinogens, so that there is potential for harm there.’
    • ‘A second approach to evaluating the risks of passive smoking is to assess the exposure to known carcinogens produced by environmental tobacco smoke.’
    • ‘The risk conferred by other occupational and environmental carcinogens should also be emphasized at this time.’
    • ‘When the saliva containing cigar products is swallowed, the esophagus is exposed to carcinogens.’
    • ‘Separate chemicals identified in tobacco smoke were already listed as carcinogens in the Report.’
    • ‘The guidelines require businesses to post warnings when they expose people to carcinogens.’
    • ‘Ionising radiation is one of the most studied and ubiquitous carcinogens in our environment.’


Mid 19th century from an abbreviation of carcinoma+ -gen.