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Definition of Caudal fin
1. Noun. The tail of fishes and some other aquatic vertebrates.
Exact synonyms: Tail Fin
Generic synonyms: Fin
Specialized synonyms: Heterocercal Fin, Homocercal Fin
Group relationships: Fish
Generic synonyms: Fin
Specialized synonyms: Heterocercal Fin, Homocercal Fin
Group relationships: Fish