"carbon-free" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "carbon",
        "3": "-free"
      },
      "expansion": "carbon + -free",
      "name": "af"
    }
  ],
  "etymology_text": "From carbon + -free.",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "head": "carbon-free"
      },
      "expansion": "carbon-free (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "Not containing carbon."
      ],
      "id": "en-carbon-free-en-adj-OrHcnKJs",
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "26 74",
          "kind": "other",
          "name": "English terms suffixed with -free",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2021 January 27, Richard Clinnick, “Rail Operations orders UK's first Class 93 tri-mode locomotives”, in RAIL, issue 923, page 10",
          "text": "The two LTO battery packs provide 400kW (536hp) extra power to supplement the engine when the locomotive is running in diesel/battery hybrid mode, as well as last-mile carbon-free shunting operation.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Not producing any carbon compounds such as carbon dioxide that might contribute to pollution, including to the atmosphere."
      ],
      "id": "en-carbon-free-en-adj-VXc3g0i2",
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "carbon-free"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English terms suffixed with -free",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "carbon",
        "3": "-free"
      },
      "expansion": "carbon + -free",
      "name": "af"
    }
  ],
  "etymology_text": "From carbon + -free.",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "head": "carbon-free"
      },
      "expansion": "carbon-free (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "Not containing carbon."
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2021 January 27, Richard Clinnick, “Rail Operations orders UK's first Class 93 tri-mode locomotives”, in RAIL, issue 923, page 10",
          "text": "The two LTO battery packs provide 400kW (536hp) extra power to supplement the engine when the locomotive is running in diesel/battery hybrid mode, as well as last-mile carbon-free shunting operation.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Not producing any carbon compounds such as carbon dioxide that might contribute to pollution, including to the atmosphere."
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "carbon-free"
}