Definition of polygeny in English:



  • [mass noun] The theory (not now generally held) that humans evolved from several independent pairs of ancestors.

    ‘the theory of polygeny is now in disrepute’
    Compare with polygenesis
    • ‘Presentations such as those in the Natural History of the Mammals provided fuel for the fire of polygeny.’
    • ‘Although both monogeny and polygeny started out with an appeal to religious doctrine, polygeny was the far weaker of the two, because the idea of separate origins went against scripture.’