"leukometer" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "leuko-",
        "3": "-meter"
      },
      "expansion": "leuko- + -meter",
      "name": "af"
    }
  ],
  "etymology_text": "From leuko- + -meter.",
  "forms": [
    {
      "form": "leukometers",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "leucometer",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leukometer (plural leukometers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with leuko-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -meter",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Measuring instruments",
          "orig": "en:Measuring instruments",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A device used for measuring whiteness or brightness."
      ],
      "id": "en-leukometer-en-noun-5tCCNZRj",
      "links": [
        [
          "device",
          "device"
        ],
        [
          "measuring",
          "measure"
        ],
        [
          "whiteness",
          "whiteness"
        ],
        [
          "brightness",
          "brightness"
        ]
      ]
    }
  ],
  "word": "leukometer"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "leuko-",
        "3": "-meter"
      },
      "expansion": "leuko- + -meter",
      "name": "af"
    }
  ],
  "etymology_text": "From leuko- + -meter.",
  "forms": [
    {
      "form": "leukometers",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "leucometer",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leukometer (plural leukometers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with leuko-",
        "English terms suffixed with -meter",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Measuring instruments"
      ],
      "glosses": [
        "A device used for measuring whiteness or brightness."
      ],
      "links": [
        [
          "device",
          "device"
        ],
        [
          "measuring",
          "measure"
        ],
        [
          "whiteness",
          "whiteness"
        ],
        [
          "brightness",
          "brightness"
        ]
      ]
    }
  ],
  "word": "leukometer"
}