WordReference Random House Unabridged Dictionary of American English © 2025
pup•fish
(pup′fish′),USA pronunciation n., pl. (esp. collectively) -fish, (esp. referring to two or more kinds or species) -fish•es.
- Fishany of several tiny, stout killifishes of the genus Cyprinodon, inhabiting marshy waters in arid areas of western North America: several species are endangered.
- pup + fish 1945–50