Physically resembling a labyrinth; with the qualities of a maze. / (anatomy) Relating to the labyrinth of the inner ear. / (figuratively) Convoluted, baffling, confusing, perplexing.

In a labyrinthine manner.

(anatomy) A long slender artery that arises from the basilar artery or one of its branches, accompanies the vestibulocochlear nerve through the internal auditory canal, and is distributed to the inner ear.