WordReference Random House Unabridged Dictionary of American English © 2026
top•min•now
(top′min′ō),USA pronunciation n., pl. (esp. collectively) -now, (esp. referring to two or more kinds or species) -nows.
- any of several small, surface-swimming fishes of the egg-laying family Cyprinodontidae and the live-bearing family Poeciliidae, some of which are used in mosquito control.
- top1 + minnow 1880–85,[American.]
'topminnow' also found in these entries (note: many are not synonyms or translations):