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- Zoology (of teeth) having the enamel deeply folded to form a labyrinthine structure【动】（牙齿）生有迷宫般复杂结构的, 迷齿的。
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- Palaeontology of or relating to a group of large fossil amphibians of the late Devonian to early Triassic periods having such teeth【古生物】（有关）迷齿动物（泥盆纪后期到三叠纪早期生有迷齿的两栖动物）的。
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- a labyrinthodont amphibian迷齿两栖动物。
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- Former subclass Labyrinthodontia: several families, but no longer considered to be a single group.原迷齿亚纲：数科, 现不再被视为一个单独类群。
词源
mid 19th cent.: from modern Latin Labyrinthodontia, from Greek laburinthos 'labyrinth' + odous, odont- 'tooth'.