WordReference Random House Unabridged Dictionary of American English © 2026
dip•no•an
(dip′nō ən),USA pronunciation adj.
n.
- Fishbelonging or pertaining to the order Dipnoi, comprising the lungfishes.
n.
- Fisha dipnoan fish.
- Greek dípnoos double-breathing (di- di-1 + -pnoos, derivative of pnoé̄ breathing, breath, air, derivative of pneîn to breathe) + -an
- Neo-Latin Dipno(i) name of the order, plural of dipnous
- 1880–85