Cancerous (adjective)

1. Of, relating to, or caused by cancer.
2. Having or characterized by the potential to cause cancer.
3. Malignant, tending to become worse and leading to death.

Origin:

From latin cancer (crab) + -ous.

Examples:

1. The biopsy showed that the tumor was cancerous.
2. The cancerous cells were rapidly spreading to other parts of her body.
3. The patient was diagnosed with a cancerous growth on his lung.
4. The chemical was found to be cancerous in laboratory tests.
5. The cancerous cells were removed during surgery.