dysgenics是什么意思

dysgenics

美[dɪs'dʒenɪks]  英[dɪs'dʒenɪks]
n.  劣生学;种族退化学
  近义词:cacogenics,eugenics,

英英释义

Noun
  1. the study of the operation of factors causing degeneration in the type of offspring produced
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