labyrinthodont

lab·y·rin·tho·dont

L0005850 (lăb′ə-rĭn′thə-dŏnt′)adj.1. Having teeth with a labyrinthine internal structure.2. Of or relating to an extinct group of amphibians having a labyrinthine tooth structure, often classified in the subclass (or superorder) Labyrinthodontia.

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lab′y·rin′tho·dont′ n.

labyrinthodont

(ˌlæbəˈrɪnθəˌdɒnt) n1. (Animals) any primitive amphibian of the order Labyrinthodontia, of late Devonian to Triassic times, having teeth with much-folded dentine2. (Palaeontology) any primitive amphibian of the order Labyrinthodontia, of late Devonian to Triassic times, having teeth with much-folded dentine[C19: from Greek laburinthos labyrinth + -odont]

Thesaurus

Noun

1.

labyrinthodont - an amphibian of the superorder Labyrinthodontiaamphibian - cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult formLabyrinthodonta, Labyrinthodontia, superorder Labyrinthodonta, superorder Labyrinthodontia - extinct amphibians typically resembling heavy-bodied salamanders or crocodiles and having a solid flattened skull and conical teeth; Devonian through Triassic