| 单词 | superfetation |
| 释义 | superfetation n. 1. Med. & Zool. a second conception during pregnancy giving rise to embryos of different ages in the uterus. 2. Bot. the fertilization of the same ovule by different kinds of pollen. 3. the accretion of one thing on another. Etymology: F superf{eacute}tation or f. mod.L superfetatio f. L superfetare (as SUPER-, fetus FOETUS) |
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