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noun
Freshwater fish of Central America having a long swordlike tail; popular aquarium fish.
synonyms: swordtail, topminnow, Xyphophorus helleri.
is a specific kind of: cyprinodont.
is a member of: genus Xyphophorus, Xyphophorus.
Polish: mieczyk
Find more on helleri elsewhere: etymology - rhymes - Wikipedia.
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