Definition of tadpole
: a larval amphibian specifically : a frog or toad larva that has a rounded body with a long tail bordered by fins and external gills soon replaced by internal gills and that undergoes a metamorphosis to the adult
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Merriam-Webster unabridgedWords at Play
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Time Traveler for tadpole
The first known use of tadpole was in the 15th century
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