Word.ws English Dictionary

onco-

onco- prefix: pertaining to tumors.

Prefix

onco-

  1. Pertaining to tumors.

Origin of onco-

First attested 1857, from New Latin onco- (“tumor”). from Ancient Greek ὄγκος (ónkos, “lump, mass, bulk”).

Words formed from onco-

Questions about onco-

What does onco- mean?
Onco- means pertaining to tumors.
What part of speech is onco-?
Onco- is a prefix.

Words near onco- in the dictionary

  1. oncilla
  2. oncillas
  3. oncivilities
  4. oncivility
  5. ONCJ
  6. onco-
  7. oncoapoptosis
  8. oncoapoptotic
  9. oncobiology
  10. oncocalyxone
  11. oncocalyxones

Source and license

Adapted from Wiktionary: onco- (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “onco-.” Word.ws, https://word.ws/onco-. Based on Wiktionary, CC BY-SA 4.0.