"Aston dark space" meaning in English

{
  "etymology_text": "Named after Francis William Aston.",
  "forms": [
    {
      "form": "Aston dark spaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Aston dark space"
      },
      "expansion": "Aston dark space (plural Aston dark spaces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
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          "kind": "other",
          "name": "Entries with translation boxes",
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        },
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        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The dark space in a glow discharge that is adjacent to the cathode."
      ],
      "id": "en-Aston_dark_space-en-noun-c~dcb7d1",
      "links": [
        [
          "dark space",
          "dark space"
        ],
        [
          "glow discharge",
          "glow discharge"
        ],
        [
          "cathode",
          "cathode"
        ]
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "dark space in a glow discharge that is adjacent to the cathode",
          "tags": [
            "masculine"
          ],
          "word": "astonscher Dunkelraum"
        }
      ],
      "wikipedia": [
        "Francis William Aston"
      ]
    }
  ],
  "word": "Aston dark space"
}

{
  "etymology_text": "Named after Francis William Aston.",
  "forms": [
    {
      "form": "Aston dark spaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Aston dark space"
      },
      "expansion": "Aston dark space (plural Aston dark spaces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with German translations"
      ],
      "glosses": [
        "The dark space in a glow discharge that is adjacent to the cathode."
      ],
      "links": [
        [
          "dark space",
          "dark space"
        ],
        [
          "glow discharge",
          "glow discharge"
        ],
        [
          "cathode",
          "cathode"
        ]
      ],
      "wikipedia": [
        "Francis William Aston"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "dark space in a glow discharge that is adjacent to the cathode",
      "tags": [
        "masculine"
      ],
      "word": "astonscher Dunkelraum"
    }
  ],
  "word": "Aston dark space"
}