1. A fish of the class Dipnoi, characterized by the ability to breathe air through lungs as well as gills; a lungfish.
Usage: scientific/zoological term

1. Of, relating to, or belonging to the class Dipnoi of fishes that possess both lungs and gills.
Usage: scientific/zoological term

Examples

• The dipnoan is an ancient fish that can survive in water and on land.
• Dipnoan species are found in Africa, South America, and Australia.
• The dipnoan's ability to breathe air allows it to survive droughts.
• Scientists study dipnoan evolution to understand the transition from fish to tetrapods.
• A dipnoan fish can enter a state of dormancy when its habitat dries up.