mono·treme /ˈmɑnəˌtrim/
單孔類動物
mono·treme /ˈmɑnəˌtrɪm/ 名詞
Mon·o·treme n. Zool. One of the Monotremata.
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monotreme
n : the most primitive mammals comprising the only extant
members of the subclass Prototheria [syn: egg-laying
mammal]