"pentaquadrupole" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "penta",
        "3": "quadrupole"
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      "expansion": "penta- + quadrupole",
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    }
  ],
  "etymology_text": "penta- + quadrupole",
  "head_templates": [
    {
      "args": {
        "1": "?"
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      "expansion": "pentaquadrupole",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w"
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        {
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          "name": "English terms prefixed with penta-",
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      ],
      "glosses": [
        "Five quadrupoles (typically in a mass spectrometer)"
      ],
      "id": "en-pentaquadrupole-en-noun-JdL6bmoq",
      "links": [
        [
          "quadrupole",
          "quadrupole"
        ],
        [
          "mass spectrometer",
          "mass spectrometer"
        ]
      ]
    }
  ],
  "word": "pentaquadrupole"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "penta",
        "3": "quadrupole"
      },
      "expansion": "penta- + quadrupole",
      "name": "prefix"
    }
  ],
  "etymology_text": "penta- + quadrupole",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "pentaquadrupole",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "glosses": [
        "Five quadrupoles (typically in a mass spectrometer)"
      ],
      "links": [
        [
          "quadrupole",
          "quadrupole"
        ],
        [
          "mass spectrometer",
          "mass spectrometer"
        ]
      ]
    }
  ],
  "word": "pentaquadrupole"
}