"degree Kelvin" meaning in English

{
  "forms": [
    {
      "form": "degrees Kelvin",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "degrees Kelvin"
      },
      "expansion": "degree Kelvin (plural degrees Kelvin)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A kelvin."
      ],
      "id": "en-degree_Kelvin-en-noun-ibCeBMix",
      "links": [
        [
          "kelvin",
          "kelvin"
        ]
      ],
      "raw_glosses": [
        "(obsolete, nonstandard) A kelvin."
      ],
      "synonyms": [
        {
          "tags": [
            "obsolete"
          ],
          "word": "degree absolute"
        },
        {
          "word": "kelvin"
        }
      ],
      "tags": [
        "nonstandard",
        "obsolete"
      ]
    }
  ],
  "word": "degree Kelvin"
}

{
  "forms": [
    {
      "form": "degrees Kelvin",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "degrees Kelvin"
      },
      "expansion": "degree Kelvin (plural degrees Kelvin)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nonstandard terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with obsolete senses"
      ],
      "glosses": [
        "A kelvin."
      ],
      "links": [
        [
          "kelvin",
          "kelvin"
        ]
      ],
      "raw_glosses": [
        "(obsolete, nonstandard) A kelvin."
      ],
      "tags": [
        "nonstandard",
        "obsolete"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "obsolete"
      ],
      "word": "degree absolute"
    },
    {
      "word": "kelvin"
    }
  ],
  "word": "degree Kelvin"
}