1 Biology The hypothetical origination of a race or species from a number of independent stocks. Compare with polygeny.
- For example, it seems to be the ground of his preference for monogenesis - the theory that the races are descended from a common stock - over polygenesis - the theory that the races have different origins.
- The Southern opponents of polygenesis even employed many of the same arguments and sources used by abolitionists to attack white prejudice.
2The hypothetical origination of language or of a surname from a number of independent sources in different places at different times.
- Proponents of polygenesis hold that the concept of genetic relatedness between languages is inaccurate.
- Both of Edo Nyland's theses are in contradiction to current opinions of linguists, who tend to suppose polygenesis of language families and language changes caused by natural evolution.
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