heterodontism

English

Etymology

heterodont +‎ -ism

Noun

heterodontism (uncountable)

  1. (zoology) Having a dentition of differing teeth.
    • 1894, “Address by Henry Fairfield Osborn”, in Proceedings of the American Association for the Advancement of Science‎, volume 42, page 197:
      Now that all mammals are led back to a distant diphyodont stem, it is also true that the further we go back both in palingenesis and embryogenesis, the more widespread heterodontism is—all modern homodontism proving to be secondary.

Antonyms
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