"asymmetron" meaning in English

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  "etymology_text": "From the neuter substantive form of Ancient Greek ἀσύμμετρος (asúmmetros, “asymmetrical”).",
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    {
      "form": "asymmetrons",
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        "A massive scalar field proposed as a form of dark matter"
      ],
      "id": "en-asymmetron-en-noun-YsAEsyxA",
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        "(physics) A massive scalar field proposed as a form of dark matter"
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  "word": "asymmetron"
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      "expansion": "Ancient Greek ἀσύμμετρος (asúmmetros, “asymmetrical”)",
      "name": "der"
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  ],
  "etymology_text": "From the neuter substantive form of Ancient Greek ἀσύμμετρος (asúmmetros, “asymmetrical”).",
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    {
      "form": "asymmetrons",
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