单词 | superfetation |
释义 | Word Frequency superfetation or superfoetation (ˌsuːpəfiːˈteɪʃən) noun physiology the presence in the uterus of two fetuses developing from ova fertilized at different times Derived forms superfetate (ˌsuːpəˈfiːteɪt) adjective Word origin C17 superfetate, from Latin superfētāre to fertilize when already pregnant, from super- + fētāre to impregnate, from fētus offspring |
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