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/ˈtɛ.tɹə/ · noun
Any of numerous species of small freshwater fish of the South American family Characidae and West African family Alestidae, popular in home aquariums..
Among them were ancient relatives of the piranhas and those popular aquarium fish the tetras, along with garfish and freshwater coelacanths, known as mawsonids.
Use tetra when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Tetra means Any of numerous species of small freshwater fish of the South American family Characidae and West African family Alestidae, popular in home aquariums..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Among them were ancient relatives of the piranhas and those popular aquarium fish the tetras, along with garfish and freshwater coelacanths, known as mawsonids.
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