onco-









onco-


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

combining form

  1. denoting a tumouroncology

word-forming element meaning “bulk, mass,” especially in medical use, “tumor,” from Latinized form of Greek onko-, comb. form of onkos “bulk, size, mass, body.” pref.

  1. Tumor:oncology.
  2. Mass; swelling:oncolysis.
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