"dysgenics"@en-us . . . . . "105686257"@en-us . . "the study of the operation of factors causing degeneration in the type of offspring produced"@en-us . . "cacogenics"@en-us . . . . "dysgenics"^^ . . "106042690"^^ . "06042690-n"^^ . "0"^^ . "0.25"^^ . . .