cacogenics
英 [ˌkækə'dʒenɪks] 美 [ˌkækə'dʒenɪks]

n.

劣生学（研究杂交造成的种系退化现象等）；

英英释义

cacogenics

• n.the study of the operation of factors causing degeneration in the type of offspring produced

  同义词：dysgenics

权威例句

The nam family : a study in cacogenics
EUGENICS vs. CACOGENICS: An Ethical Question of Importance to the Movement—Attention Should Be Centered on Factors of Absolute Valu...
The Nam family; a study in cacogenics, by Arthur H. Estabrook ... and Charles B. Davenport ... With four charts and four text figures.
Human Inheritance
Eugenic Sterilization in the United States
Modernist Versions of Pastoral: Poetic Inspiration, Scientific Expertise, and the “Degenerate” Farmer
Dysgenics
Dysgenics
Dysgenics
Dysgenics