| 单词 | protospermatoblast | 
| 释义 | Definition of protospermatoblast in English:protospermatoblastnoun Zoology rare, historical 
 OriginLate 19th century; earliest use found in Quarterly Journal of Microscopical Science. After French protospermatoblaste. Definition of protospermatoblast in US English:protospermatoblastnoun Zoology rare, historical 
 OriginLate 19th century; earliest use found in Quarterly Journal of Microscopical Science. After French protospermatoblaste.  | 
	
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