"cardinal tetra" meaning in English

{
  "forms": [
    {
      "form": "cardinal tetras",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cardinal tetra (plural cardinal tetras)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
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          "source": "w"
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Characins",
          "orig": "en:Characins",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A freshwater fish (Paracheirodon axelrodi, family Characidae), native to rivers in South America, popular as an aquarium fish."
      ],
      "id": "en-cardinal_tetra-en-noun-6lqmHLdp",
      "links": [
        [
          "freshwater",
          "freshwater"
        ],
        [
          "fish",
          "fish"
        ],
        [
          "family",
          "family"
        ],
        [
          "Characidae",
          "Characidae#Translingual"
        ],
        [
          "river",
          "river"
        ],
        [
          "South America",
          "South America"
        ],
        [
          "aquarium",
          "aquarium"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "lang_code": "fi",
          "sense": "Paracheirodon axelrodi",
          "word": "kardinaalitetra"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "lang_code": "ru",
          "roman": "krásnyj neón",
          "sense": "Paracheirodon axelrodi",
          "tags": [
            "masculine"
          ],
          "word": "кра́сный нео́н"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "lang_code": "ru",
          "roman": "kardinálʹskaja tétra",
          "sense": "Paracheirodon axelrodi",
          "tags": [
            "feminine"
          ],
          "word": "кардина́льская те́тра"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "lang_code": "sv",
          "sense": "Paracheirodon axelrodi",
          "word": "kardinaltetra"
        }
      ]
    }
  ],
  "word": "cardinal tetra"
}

{
  "forms": [
    {
      "form": "cardinal tetras",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cardinal tetra (plural cardinal tetras)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
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        "English multiword terms",
        "English nouns",
        "Entries using missing taxonomic name (species)",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Russian translations",
        "Terms with Swedish translations",
        "en:Characins"
      ],
      "glosses": [
        "A freshwater fish (Paracheirodon axelrodi, family Characidae), native to rivers in South America, popular as an aquarium fish."
      ],
      "links": [
        [
          "freshwater",
          "freshwater"
        ],
        [
          "fish",
          "fish"
        ],
        [
          "family",
          "family"
        ],
        [
          "Characidae",
          "Characidae#Translingual"
        ],
        [
          "river",
          "river"
        ],
        [
          "South America",
          "South America"
        ],
        [
          "aquarium",
          "aquarium"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "lang_code": "fi",
      "sense": "Paracheirodon axelrodi",
      "word": "kardinaalitetra"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "lang_code": "ru",
      "roman": "krásnyj neón",
      "sense": "Paracheirodon axelrodi",
      "tags": [
        "masculine"
      ],
      "word": "кра́сный нео́н"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "lang_code": "ru",
      "roman": "kardinálʹskaja tétra",
      "sense": "Paracheirodon axelrodi",
      "tags": [
        "feminine"
      ],
      "word": "кардина́льская те́тра"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "lang_code": "sv",
      "sense": "Paracheirodon axelrodi",
      "word": "kardinaltetra"
    }
  ],
  "word": "cardinal tetra"
}