Onco- definition: a combining form meaning “tumor,” “mass,” used in the formation of compound words. See examples of ONCO- used in a sentence.

The meaning of ONCO- is tumor. How to use onco- in a sentence.

As a general rule, the "o" is dropped when connecting to a root word ... ONCO-, mass / tumour, oncology = the study of cancer. OSTEO-, bone / bony tissue ...

onc/o- tumor, onych/o- nail, oophor/o- ovary, ophthalm/o- eye or eyball, opisth/o- backwards (bending), opto- vision, sight, eye, ora-

Oncology is the branch of medicine that deals with tumors and cancer. A doctor who practices oncology is called an oncologist.

A branch of medicine that specializes in the diagnosis and treatment of cancer. It includes medical oncology (the use of chemotherapy, hormone therapy, ...

Understanding Medical Terms ; ocul(o). eye ; odyn(o). pain ; oma. tumor ; onc(o). tumor ; oophor(o). ovaries.

omphal/o, navel ; -on, that goes [suffix] ; onc/o, tumor, mass ; onych/o, nail ; oophor/o, ovary.

any of various genes that, when activated as by radiation or a virus, may cause a normal cell to become cancerous. Axtarishster's New World College Dictionary, ...