"ultramarathoning" meaning in English

{
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      "expansion": "ultramarathon + -ing",
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  "etymology_text": "From ultramarathon + -ing.",
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      "expansion": "ultramarathoning (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "2007 July 21, Aimee Berg, “Far-From-Basic Training for a 135-Mile Footrace”, in New York Times:",
          "text": "Both men are pursuing one of the most coveted prizes in ultramarathoning: a nickel-plated belt buckle awarded to athletes who finish one of the world’s most severe and demanding footraces, the Badwater Ultramarathon, in less than 48 hours.",
          "type": "quote"
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      ],
      "glosses": [
        "The sport of running ultramarathons."
      ],
      "id": "en-ultramarathoning-en-noun-rZXTIlL2",
      "links": [
        [
          "ultramarathon",
          "ultramarathon"
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      "tags": [
        "uncountable"
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  "word": "ultramarathoning"
}

{
  "etymology_templates": [
    {
      "args": {
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        "2": "ultramarathon",
        "3": "ing"
      },
      "expansion": "ultramarathon + -ing",
      "name": "suffix"
    }
  ],
  "etymology_text": "From ultramarathon + -ing.",
  "head_templates": [
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      "expansion": "ultramarathoning (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "ref": "2007 July 21, Aimee Berg, “Far-From-Basic Training for a 135-Mile Footrace”, in New York Times:",
          "text": "Both men are pursuing one of the most coveted prizes in ultramarathoning: a nickel-plated belt buckle awarded to athletes who finish one of the world’s most severe and demanding footraces, the Badwater Ultramarathon, in less than 48 hours.",
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        }
      ],
      "glosses": [
        "The sport of running ultramarathons."
      ],
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          "ultramarathon"
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  "word": "ultramarathoning"
}