robotfish
nounUK /ˈrəʊbɒt fɪʃ/
US /ˈroʊbɑːt fɪʃ/
A robot fish is a machine that looks and swims like a real fish.
The robotfish glided through the aquarium tank, wiggling its tail just like a real fish.
RELATED WORDS
OTHER MEANINGS
2. A small robotic toy shaped like a fish that children play with in water.
My little brother took his robotfish into the bathtub and made it swim around.
3. An underwater robot used by scientists to study oceans or inspect pipes.
The research team sent a robotfish into the deep sea to record water temperatures.
4. A fish-like machine used as a decoy or lure in fishing.
He attached a robotfish to his line to attract bigger catches.