"illuminance" meaning in All languages combined

See illuminance on Wiktionary

Noun [English]

Forms: illuminances [plural]
Head templates: {{en-noun|~}} illuminance (countable and uncountable, plural illuminances)
  1. (physics) The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see. Tags: countable, uncountable

Inflected forms

{
  "forms": [
    {
      "form": "illuminances",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "illuminance (countable and uncountable, plural illuminances)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Light",
          "orig": "en:Light",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Physical quantities",
          "orig": "en:Physical quantities",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see."
      ],
      "id": "en-illuminance-en-noun-7PuR2sKT",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "luminous flux",
          "luminous flux"
        ],
        [
          "lux",
          "lux"
        ],
        [
          "lumen",
          "lumen"
        ],
        [
          "metre",
          "metre"
        ],
        [
          "foot-candle",
          "foot-candle"
        ],
        [
          "apparent magnitude",
          "apparent magnitude"
        ]
      ],
      "raw_glosses": [
        "(physics) The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "illuminance"
}
{
  "forms": [
    {
      "form": "illuminances",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "illuminance (countable and uncountable, plural illuminances)",
      "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 uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Light",
        "en:Physical quantities",
        "en:Physics"
      ],
      "glosses": [
        "The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "luminous flux",
          "luminous flux"
        ],
        [
          "lux",
          "lux"
        ],
        [
          "lumen",
          "lumen"
        ],
        [
          "metre",
          "metre"
        ],
        [
          "foot-candle",
          "foot-candle"
        ],
        [
          "apparent magnitude",
          "apparent magnitude"
        ]
      ],
      "raw_glosses": [
        "(physics) The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "illuminance"
}

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This page is a part of the kaikki.org machine-readable All languages combined dictionary. This dictionary is based on structured data extracted on 2026-09-20 from the enwiktionary dump dated 2026-09-02 using wiktextract (d6fca27 and 65e1673). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.