"Goldstone boson" meaning in English

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  "etymology_text": "Named after British theoretical physicist Jeffrey Goldstone.",
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        "A spinless boson that necessarily appears in models exhibiting spontaneous breakdown of continuous symmetries."
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          "physics",
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        "(physics) A spinless boson that necessarily appears in models exhibiting spontaneous breakdown of continuous symmetries."
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        {
          "word": "Goldstone's theorem"
        }
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      "synonyms": [
        {
          "word": "Nambu-Goldstone boson"
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        "Goldstone boson"
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  "word": "Goldstone boson"
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