/dip"noh euhn/ , adj.
1. belonging or pertaining to the order Dipnoi, comprising the lungfishes.
n.
2. a dipnoan fish.
[ 1880-85; Dipno ( i ) name of the order, pl. of dipnous dípnoos double-breathing ( di- DI- 1 + -pnoos, deriv. of pnoé breathing, breath, air, deriv. of pneîn to breathe) + -AN ]