Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A morbid, monstrous, or pathological growth or product; an abnormality in structure; a monstrosity.

from The Century Dictionary and Cyclopedia

  • n. In medicine, a morbid formation, whether congenital, as a monstrosity, or of later development, as a tumor.
  • n. The quality, common in mixed breeds, of having a low vitality and of being infertile.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. inability to produce hybrids that are both viable and fertile

Etymologies

caco- + -genesis (Wiktionary)

Examples

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