- belonging or pertaining to the order Dipnoi, comprising the lungfishes.
- a dipnoan fish.
Origin of dipnoan
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dipnoan
Interest notes on Dipnoan fin characters have been given by Traquair.
In every modern Dipnoan, Crossopterygian, and Ganoid the air-bladder has an effective pneumatic duct.
It is not unlikely that the Crossopterygian gave rise to Amphibian and Dipnoan alike.
In the archaic tail, enameled scales, and cartilaginous skeleton the Crossopterygian shows its affinity with its Dipnoan ancestry.
The dipnoan and ganoid traits one by one are more or less completely lost.
- of, relating to, or belonging to the Dipnoi, a subclass of bony fishes comprising the lungfishes
- any lungfish
C19: from New Latin Dipnoi, from Greek dipnoos, double-breathing, from di- 1 + pnoē breathing, air, from pnein to breathe