"light water" meaning in English

See light water in All languages combined, or Wiktionary

Noun

Forms: lightwater [alternative], light-water [alternative]
Head templates: {{en-noun|-}} light water (uncountable)
  1. (inorganic chemistry) Water in its standard form of H₂O, containing two protium (¹H) hydrogen atoms, as opposed to heavy water (which contains deuterium, ²H). Tags: uncountable Categories (topical): Inorganic compounds, Firefighting, Water
    Sense id: en-light_water-en-noun-ozlFl0y4 Disambiguation of Firefighting: 54 46 Disambiguation of Water: 72 28 Categories (other): English entries with incorrect language header, English retronyms, Pages with 1 entry, Pages with entries Disambiguation of English entries with incorrect language header: 71 29 Disambiguation of English retronyms: 76 24 Disambiguation of Pages with 1 entry: 74 26 Disambiguation of Pages with entries: 77 23 Topics: chemistry, inorganic-chemistry, natural-sciences, physical-sciences
  2. Foam formed by water and a fluorocarbon surfactant, used in firefighting because it floats on flammable liquids lighter than water. Tags: uncountable Categories (topical): Firefighting
    Sense id: en-light_water-en-noun-c0DHTRYV Disambiguation of Firefighting: 54 46
The following are not (yet) sense-disambiguated
Synonyms: 1H2O, protium water, protium oxide, diprotium oxide, protium monoxide, diprotium monoxide, protiated water, fully-protiated water Hypernyms: H2O, water, protiated water Derived forms: light water reactor Related terms: heavy water, semi-heavy water, super-heavy water
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      "word": "H2O"
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      "_dis1": "46 54",
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  "senses": [
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        "(inorganic chemistry) Water in its standard form of H₂O, containing two protium (¹H) hydrogen atoms, as opposed to heavy water (which contains deuterium, ²H)."
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          "ref": "2001, Roger C. Mardon, An Illustrated History of Fire Engines, →ISBN, page 112:",
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    {
      "_dis1": "46 54",
      "word": "1H2O"
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      "_dis1": "46 54",
      "word": "protium water"
    },
    {
      "_dis1": "46 54",
      "word": "protium oxide"
    },
    {
      "_dis1": "46 54",
      "word": "diprotium oxide"
    },
    {
      "_dis1": "46 54",
      "word": "protium monoxide"
    },
    {
      "_dis1": "46 54",
      "word": "diprotium monoxide"
    },
    {
      "_dis1": "46 54",
      "word": "protiated water"
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        "(inorganic chemistry) Water in its standard form of H₂O, containing two protium (¹H) hydrogen atoms, as opposed to heavy water (which contains deuterium, ²H)."
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    {
      "word": "1H2O"
    },
    {
      "word": "protium water"
    },
    {
      "word": "protium oxide"
    },
    {
      "word": "diprotium oxide"
    },
    {
      "word": "protium monoxide"
    },
    {
      "word": "diprotium monoxide"
    },
    {
      "word": "protiated water"
    },
    {
      "word": "fully-protiated water"
    }
  ],
  "word": "light water"
}

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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-02-22 from the enwiktionary dump dated 2025-02-02 using wiktextract (9e2b7d3 and f2e72e5). 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.