[ 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.


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Origin of oncology

First recorded in 1855–60; onco- + -logy


on·co·log·ic [ong-kuh-loj-ik] /ˌɒŋ kəˈlɒdʒ ɪk/, on·co·log·i·cal, adjectiveon·col·o·gist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for oncology

British Dictionary definitions for oncology

/ (ɒŋˈkɒlədʒɪ) /


the branch of medicine concerned with the study, classification, and treatment of tumours

Derived forms of oncology

oncological (ˌɒŋkəˈlɒdʒɪkəl), adjectiveoncologist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for oncology

[ ŏng-kŏlə-jē ]


The branch of medicine dealing with the physical, chemical, and biological properties of tumors, including study of their development, diagnosis, treatment, and prevention.

Other words from oncology

on′co•logi•cal (-kə-lŏjĭ-kəl) null adj.on•colo•gist n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for oncology

[ ŏn-kŏlə-jē ]

The branch of medicine that deals with the diagnosis and treatment of cancer.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for oncology

[ (ong-kol-uh-jee, on-kol-uh-jee) ]

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

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.