单词	Mastodonsaurus
释义	Mastodonsaurus noun Mas·​to·​don·​sau·​rus : a genus of Old World Triassic amphibians containing the largest known labyrinthodonts with the skull over four feet long and having at the front of the lower jaw a pair of short tusks that close into openings piercing the premaxillae Word History Etymology New Latin, from Mastodon + -saurus
随便看	oppy opr oprichnik oprichniki oprichniks opry OPS ops opses opsimath opsimaths opsin opsins opsiometers opsisform opsistype opsomaniacs opson- opsonic pressure distillate pressure element pressure fan pressure filter pressure flaking pressure gauge

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