This is the 9067th most frequent Portuguese word.
barbatana
Fin (of a fish or marine animal).
In this sentence, 'barbatana' refers to a fin, specifically the dorsal fin of a shark.
O tubarão move-se rapidamente utilizando sua barbatana dorsal.
The shark moves swiftly using its dorsal fin.
The term 'barbatana' in this sentence denotes accessories akin to fins that help improve swimming efficiency.
Para nadar melhor, o atleta usou uma barbatana especial nos pés.
To swim better, the athlete used special fins on their feet.
'Barbatana' here metaphorically describes an object designed to resemble a fin, used for decoration.