swordtail

Noun
  1. Freshwater fish of Central America having a long swordlike tail;
    Popular aquarium fish (synset 101450932)
    is a type of: cyprinodont - any member of the family Cyprinodontidae
    belongs to: genus xyphophorus, xyphophorus - swordtails
    same as: helleri, topminnow, xyphophorus helleri

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