<p><strong>Noun</strong></p><ul><li>Any of various slender, air-breathing fishes of the order (or subclass) Dipnoi, of rivers and lakes in Africa, South America, and Australia, having a lunglike air bladder as well as gills and growing to a length of 3 to 6 feet (0.9 to 1.8 meters).</li></ul><p><strong>End of Response</strong></p>