单词 | Prototheria |
释义 | Prototheria/ˌprəʊtə(ʊ)ˈθɪərɪə /plural noun Zoology A group of mammals that comprises the monotremes and their extinct relatives. Compare with Theria.
OriginModern Latin (plural), from proto- 'first, original' + Greek thēr 'wild beast'. |
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