"jet cocoon" meaning in English

{
  "forms": [
    {
      "form": "jet cocoons",
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      "expansion": "jet cocoon (plural jet cocoons)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
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      "glosses": [
        "A cloud of gas that obscures the poles of a star undergoing hypernova (HN), which gets heated by the polar jet escaping the hypernova progenitor star (hnp), and may absorb the energy of a weak gamma-ray burst (GRB), leaving an observable HN lacking the associated GRB, or be penetrated by a stronger GRB, giving a HN with an associated GRB."
      ],
      "id": "en-jet_cocoon-en-noun-nuyatPzV",
      "links": [
        [
          "astronomy",
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        [
          "hypernova",
          "hypernova"
        ],
        [
          "gamma-ray burst",
          "gamma-ray burst"
        ]
      ],
      "qualifier": "supernovae astronomy",
      "raw_glosses": [
        "(supernovae astronomy) A cloud of gas that obscures the poles of a star undergoing hypernova (HN), which gets heated by the polar jet escaping the hypernova progenitor star (hnp), and may absorb the energy of a weak gamma-ray burst (GRB), leaving an observable HN lacking the associated GRB, or be penetrated by a stronger GRB, giving a HN with an associated GRB."
      ]
    }
  ],
  "word": "jet cocoon"
}

{
  "forms": [
    {
      "form": "jet cocoons",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "jet cocoon (plural jet cocoons)",
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  "lang_code": "en",
  "pos": "noun",
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        "en:Astronomy"
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      "glosses": [
        "A cloud of gas that obscures the poles of a star undergoing hypernova (HN), which gets heated by the polar jet escaping the hypernova progenitor star (hnp), and may absorb the energy of a weak gamma-ray burst (GRB), leaving an observable HN lacking the associated GRB, or be penetrated by a stronger GRB, giving a HN with an associated GRB."
      ],
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          "astronomy",
          "astronomy"
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        [
          "hypernova",
          "hypernova"
        ],
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          "gamma-ray burst",
          "gamma-ray burst"
        ]
      ],
      "qualifier": "supernovae astronomy",
      "raw_glosses": [
        "(supernovae astronomy) A cloud of gas that obscures the poles of a star undergoing hypernova (HN), which gets heated by the polar jet escaping the hypernova progenitor star (hnp), and may absorb the energy of a weak gamma-ray burst (GRB), leaving an observable HN lacking the associated GRB, or be penetrated by a stronger GRB, giving a HN with an associated GRB."
      ]
    }
  ],
  "word": "jet cocoon"
}