WordReference Random House Unabridged Dictionary of American English © 2025
po•lyg•e•nism
(pə lij′ə niz′əm),USA pronunciation n.
po•lyg′e•nist, n., adj.
po•lyg′e•nis′tic, adj.
- Geneticsthe theory that the human race has descended from two or more ancestral types.
- poly- + -gen(y) + -ism 1875–80
po•lyg′e•nis′tic, adj.