on·​co·​gen·​e·​sis ˌäŋ-kō-ˈje-nə-səs How to pronounce oncogenesis (audio)
: the induction or formation of tumors

Examples of oncogenesis in a Sentence

Recent Examples on the Web Further expansion of such HSC mutations results in clonal hematopoiesis of indeterminate potential (CHIP), a known driver of oncogenesis and dysfunctional inflammation. Salvatore Viscomi, Forbes, 22 Mar. 2023 Adaptive oncogenesis attributes that in large part to the tissue damage induced by what is supposed to be a beneficial therapy. James Degregori, STAT, 27 June 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'oncogenesis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


onco- + genesis

First Known Use

circa 1932, in the meaning defined above

Time Traveler
The first known use of oncogenesis was circa 1932

Dictionary Entries Near oncogenesis

Cite this Entry

“Oncogenesis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oncogenesis. Accessed 17 May. 2024.

Medical Definition


on·​co·​gen·​e·​sis ˌäŋ-kō-ˈjen-ə-səs How to pronounce oncogenesis (audio)
plural oncogeneses -ˌsēz How to pronounce oncogenesis (audio)
: the induction or formation of tumors

More from Merriam-Webster on oncogenesis

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!