LabyrinthiciLab`y*rin"thi*ci\, n. pl. [NL. See Labyrinth.] (Zo["o]l.) An order of teleostean fishes, including the Anabas, or climbing perch, and other allied fishes. Note: They have, connected with the gill chamber, a special cavity in which a labyrinthiform membrane is arranged so as to retain water to supply the gills while the fish leaves the water and travels about on land, or even climbs trees.