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单词 superfoetation
释义

superfoetation /ˌsju:pəfi'teiʃən/

英汉-汉英词典
vi. (卵)异期复孕
词组 | 习惯用语
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  • superstition n. 迷信
  • superannuation n. 退休金;养老金;老年退休;陈旧;老弱无能
  • supersaturation n. 过度饱和
  • supererogation n. 职责以外的工作

网络短语:
superfoetation 复孕; 异期复孕;
英语百科

Superfetation

Superfetation (also spelled superfoetation – see fetus) is the simultaneous occurrence of more than one stage of developing offspring in the same animal. In mammals, it manifests as the formation of an embryo from a different estrous cycle while another embryo or fetus is already present in the uterus. When two separate instances of fertilisation occur during the same menstrual cycle, it is known as superfecundation.

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