"discolorisation" meaning in English

{
  "forms": [
    {
      "form": "discolorisations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "discolorisation (usually uncountable, plural discolorisations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "discolorization"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1851, Thomas Carlyle, The Life of John Sterling, London: Chapman and Hall, […], →OCLC:",
          "text": "The shadow of the archway, the discolorisations of time on all the walls, the dimness of the little thicket which encircled it, the traditions of its immeasurable age, made St. Quentin's Castle a wonderful and awful fabric […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of discolorization"
      ],
      "id": "en-discolorisation-en-noun-2HE~uUtJ",
      "links": [
        [
          "discolorization",
          "discolorization#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "discolorisation"
}

{
  "forms": [
    {
      "form": "discolorisations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "discolorisation (usually uncountable, plural discolorisations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "discolorization"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry"
      ],
      "examples": [
        {
          "ref": "1851, Thomas Carlyle, The Life of John Sterling, London: Chapman and Hall, […], →OCLC:",
          "text": "The shadow of the archway, the discolorisations of time on all the walls, the dimness of the little thicket which encircled it, the traditions of its immeasurable age, made St. Quentin's Castle a wonderful and awful fabric […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of discolorization"
      ],
      "links": [
        [
          "discolorization",
          "discolorization#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "discolorisation"
}