| NOUN | animal | ascidian tadpole | free-swimming larva of ascidians |
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| Meaning | free-swimming larva of ascidians; they have a tail like a tadpole that contains the notochord. | |
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| Member of | Ascidiaceae, class Ascidiaceae | sometimes classified as an order |
| Broader | larva | The immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose |
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