Definitions for onco-
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Random House Webster's College Dictionary
onco-
a combining form meaning “tumor,”“mass”:
oncogenesis.
Category: Pathology, Affix
Origin of onco-:
comb. form of Gk ónkos mass, bulk
Wiktionary
onco-(Prefix)
Pertaining to tumors.
Origin: First attested 1857, from onco-. from ὄγκος
Citation
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