ENGLISH
REFERENCE

tumor

n. countable
B2 Upper Intermediate US //ˈtumɝ// tu·mor

n. a mass of extra cells that grows in or on the body. Some are harmless, but others can cause serious health problems like cancer.

n. an abnormal mass of tissue resulting from excessive cell division. It may be benign, meaning it does not spread, or malignant, indicating a cancerous growth.


SIMPLE

The doctor found a small tumor during the routine scan.

CONTEXTUAL

After the biopsy, the medical team confirmed that the tumor was benign and required no further treatment.

COMPLEX

Advances in oncology have allowed surgeons to target the tumor with extreme precision, minimizing damage to the surrounding healthy tissue during the procedure.

Synonyms
Origin

From Middle English tumour, from Old French tumour, from Latin tumor (“swelling”), from tumeō (“bulge, swell”, verb), from Proto-Italic tumēō, from Proto-Indo-European tewh₂- (“to swell”). Related to English thumb.

Usage

Commonly modified by the adjectives 'benign' or 'malignant' to indicate the level of health risk.

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