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[ong-kol-uh-jee] /ɒŋˈkɒl ə dʒi/

the branch of medical science dealing with tumors, including the origin, development, diagnosis, and treatment of malignant neoplasms.
the study of cancer.
the branch of medicine concerned with the study, classification, and treatment of tumours

1857, coined in English from onco- “tumor” + -logy “science or study of.” Related: Oncologist; oncological.

oncology on·col·o·gy (ŏn-kŏl’ə-jē, ŏng-)
The branch of medicine dealing with the physical, chemical, and biological properties of tumors, including study of their development, diagnosis, treatment, and prevention.
on’co·log’i·cal (-kə-lŏj’ĭ-kəl) or on’co·log’ic (-lŏj’ĭk) adj.
on·col’o·gist n.
The branch of medicine that deals with the diagnosis and treatment of cancer.
oncology [(ong-kol-uh-jee, on-kol-uh-jee)]

The branch of medicine devoted to the study, treatment, and cure of cancer.


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