| 单词 | internal fertilization | 
| 释义 | Definition of internal fertilization in English:internal fertilizationnoun Zoology 
 OriginLate 19th century; earliest use found in Adam Sedgwick (1854–1913), zoologist. After German innere Befruchtung. Definition of internal fertilization in US English:internal fertilizationnoun Zoology 
 OriginLate 19th century; earliest use found in Adam Sedgwick (1854–1913), zoologist. After German innere Befruchtung.  | 
	
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