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oncology

American  
[ong-kol-uh-jee] / ɒŋˈkɒl ə dʒi /

noun

  1. the branch of medical science dealing with tumors, including the origin, development, diagnosis, and treatment of malignant neoplasms.

  2. the study of cancer.


oncology British  
/ ˌɒŋkəˈlɒdʒɪkəl, ɒŋˈkɒlədʒɪ /

noun

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

"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

oncology Scientific  
/ ŏn-kŏlə-jē /
  1. The branch of medicine that deals with the diagnosis and treatment of cancer.


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


Other Word Forms

  • oncologic adjective
  • oncological adjective
  • oncologist noun

Etymology

Origin of oncology

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Merck announced earlier this week that it would reorganize its human health business to create a separate division for its oncology medicines ahead of Keytruda’s patent cliff.

From Barron's

The drugmaker is splitting its Human Health business into an oncology unit and a specialty, pharmaceuticals, and infectious diseases unit.

From Barron's

"I've been working in oncology for 20 years and the key, in my mind, is to reduce stage four because these are the cancers we cannot cure," he said.

From BBC

Eventually, I sought care at a local emergency room, where hospital personnel told me only breast oncology would see me.

From The Wall Street Journal

GSK said Wednesday that it had double-digit percentage growth in its immunology and inflammation, oncology and HIV portfolios throughout the year.

From The Wall Street Journal