onco-

a combining form meaning “tumor,” “mass,” used in the formation of compound words: oncogenic.

Origin of onco-

combining form of Greek ónkos mass, bulk

Words nearby onco-

once-over-lightly, oncer, onchocerca, onchocerciasis, oncidium, onco-, oncocyte, oncocytic hepatocellular tumor, oncocytoma, oncofetal, oncofetal antigen

British Dictionary definitions for onco-

onco-

combining form

denoting a tumour oncology

Word Origin for onco-

from Greek onkos

Medical definitions for onco-

onco-

pref.

Tumor:oncology.
Mass; swelling:oncolysis.