dys·gen·e·sis /(ˌ)dɪsˈʤɛnəsəs/
生殖力障礙; 性腺生成障礙
dys·gen·e·sis /(ˈ)dɪsˈʤɛnəsəs/ 名詞
發育不全,畸形,生殖力障礙
Dys·gen·e·sis n. Biol. A condition of not generating or breeding freely; infertility; a form of homogenesis in which the hybrids are sterile among themselves, but are fertile with members of either parent race.
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dysgenesis
n : infertility between hybrids