English▸ adjective Zoology (of teeth) having the enamel deeply folded to form a labyrinthine structure.
▪ relating to a group of large fossil amphibians of the late Devonian to early Triassic periods having labyrinthodont teeth.
▸ noun a labyrinthodont amphibian.
Former subclass Labyrinthodontia: several families, but no longer considered to be a single group.
– ORIGIN mid 19th century: from modern Latin Labyrinthodontia, from Greek laburinthos ‘labyrinth’ + odous, odont- ‘tooth’.