Definition of cancerous in US English:



  • Affected by or showing abnormalities characteristic of cancer.

    ‘a cancerous tumor’
    ‘if stem cells are unstable, they can become cancerous’
    • ‘The study suggests that the size of the light scatterers in the cancerous epithelium are not significantly modified.’
    • ‘Individuals from Family A were monitored by dermatologists for cancerous and precancerous lesions of the skin.’
    • ‘Although cancerous liver cells easily can be grown in culture dishes, growing healthy liver cells is not so easy.’
    • ‘Of those patients, 214 were diagnosed with noncancerous masses, and 30 had cancerous neoplasms.’
    • ‘The young actress had a lump removed from her breast because doctors suspected it was cancerous.’
    • ‘It was originally designed to break down cancerous tissues.’
    • ‘A new ovarian tumor index to help physicians accurately diagnose ovarian tumors as cancerous or benign has been developed by researchers in Dallas.’
    • ‘In the laboratory, this substance protects cells from cancerous change.’
    • ‘Knowing what changes to the genome make cells cancerous can help oncologists defeat the tumor with tailor-made chemotherapy.’
    • ‘It's believed calcium reduces the occurrence of polyps in the colon that can turn cancerous.’