Definition of polygeny in English:

polygeny

noun

  • [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.’

Pronunciation:

polygeny

/pəˈlɪdʒ(ə)ni/