"tetraquark" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "tetra",
        "3": "quark"
      },
      "expansion": "tetra- + quark",
      "name": "prefix"
    }
  ],
  "etymology_text": "From tetra- + quark.",
  "forms": [
    {
      "form": "tetraquarks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tetraquark (plural tetraquarks)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with tetra-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A hypothetical meson composed of four valence quarks."
      ],
      "id": "en-tetraquark-en-noun-IQluZwAx",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "hypothetical",
          "hypothetical"
        ],
        [
          "meson",
          "meson"
        ],
        [
          "valence quark",
          "valence quark"
        ]
      ],
      "raw_glosses": [
        "(physics) A hypothetical meson composed of four valence quarks."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "sìkuākètài",
          "sense": "hypothetical meson",
          "word": "四夸克態"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "hypothetical meson",
          "tags": [
            "masculine"
          ],
          "word": "tétraquark"
        }
      ],
      "wikipedia": [
        "tetraquark"
      ]
    }
  ],
  "word": "tetraquark"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "tetra",
        "3": "quark"
      },
      "expansion": "tetra- + quark",
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    }
  ],
  "etymology_text": "From tetra- + quark.",
  "forms": [
    {
      "form": "tetraquarks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tetraquark (plural tetraquarks)",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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    {
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        "en:Physics"
      ],
      "glosses": [
        "A hypothetical meson composed of four valence quarks."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "hypothetical",
          "hypothetical"
        ],
        [
          "meson",
          "meson"
        ],
        [
          "valence quark",
          "valence quark"
        ]
      ],
      "raw_glosses": [
        "(physics) A hypothetical meson composed of four valence quarks."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "tetraquark"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "sìkuākètài",
      "sense": "hypothetical meson",
      "word": "四夸克態"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "hypothetical meson",
      "tags": [
        "masculine"
      ],
      "word": "tétraquark"
    }
  ],
  "word": "tetraquark"
}