"sodium lamp" meaning in English

{
  "forms": [
    {
      "form": "sodium lamps",
      "tags": [
        "plural"
      ]
    }
  ],
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    {
      "args": {},
      "expansion": "sodium lamp (plural sodium lamps)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sodium",
          "orig": "en:Sodium",
          "parents": [
            "Alkali metals",
            "Chemical elements",
            "Metals",
            "Matter",
            "Metallurgy",
            "Chemistry",
            "Nature",
            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A sodium vapor lamp."
      ],
      "id": "en-sodium_lamp-en-noun-eQrT-Ijv",
      "links": [
        [
          "sodium vapor lamp",
          "sodium vapor lamp"
        ]
      ]
    }
  ],
  "word": "sodium lamp"
}

{
  "forms": [
    {
      "form": "sodium lamps",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sodium lamp (plural sodium lamps)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Sodium"
      ],
      "glosses": [
        "A sodium vapor lamp."
      ],
      "links": [
        [
          "sodium vapor lamp",
          "sodium vapor lamp"
        ]
      ]
    }
  ],
  "word": "sodium lamp"
}