| dysgenic | (adj) pertaining to or causing degeneration in the offspring produced, Syn. cacogenic, Ant. eugenic |
| dysgenics | (n) the study of the operation of factors causing degeneration in the type of offspring produced, Syn. cacogenics, Ant. eugenics |
| cacogenics | n. the study of the operation of factors causing degeneration in the type of offspring produced. |