Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One who supports hereditarianism.
  • adj. Relating to or based on hereditarianism.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Pertaining to hereditarianism.

from The Century Dictionary and Cyclopedia

  • n. A believer in the biological doctrine of heredity or atavism.

Etymologies

From hereditary +‎ -an. (Wiktionary)

Examples

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