pollywog
/ˈpɑliwɑɡ/
noun
- A young amphibian (such as a frog or toad) at the stage when it lives in water, has gills, and a tail; a tadpole.
- By summer, the pollywog had turned into a small frog and left the water.
- The children caught a pollywog in the pond and watched it grow legs.
- A pollywog looks like a tiny fish with a round body and a long tail.
Synonyms