Definition of tetra in English:

tetra

Line breaks: tetra
Pronunciation: /ˈtɛtrə
 
/

noun

  • A small tropical freshwater fish that is typically brightly coloured. Native to Africa and America, many tetras are popular in aquaria.
    • Numerous genera and species in the family Characidae, including the neon tetra
    More example sentences
    • We have a freshwater fish tank community of tetras, catfish, gouramis and loaches.
    • Like many tetras, the glowlight tetra is a schooling fish and prefers to swim in the company of at least seven of its peers.
    • The freshwater mollies and tetras are rather ferocious and may take chunks out of your skin like miniature piranhas.

Origin

mid 20th century: abbreviation of modern Latin Tetragonopterus (former genus name), literally 'tetragonal finned'.

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