diprotodon 📖 中文释义 双门齿兽(生活于澳大利亚) 📘 English Definition(英文释义) n. An extinct Quaternary marsupial from Australia, aboutas large as the hippopotamus; -- so named because of its two largefront teeth. See Illustration in Appendix. ← diprotic acid D 字母词表 diprotodont →