| 单词 | Protorosaurus | 
| 释义 | Definition of Protorosaurus in English:Protorosaurus(also Proterosaurus) noun ˌprəʊt(ə)rə(ʊ)ˈsɔːrəs 
 OriginMid 19th century. From scientific Latin Protorosaurus, irregularly from protero- + -saurus, apparently by confusion with words in proto-. Definition of Protorosaurus in US English:Protorosaurus(also Proterosaurus) nounˌprəʊt(ə)rə(ʊ)ˈsɔːrəs 
 OriginMid 19th century. From scientific Latin Protorosaurus, irregularly from protero- + -saurus, apparently by confusion with words in proto-.  | 
	
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