"timestepping" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "time",
        "3": "stepping"
      },
      "expansion": "time + stepping",
      "name": "compound"
    }
  ],
  "etymology_text": "time + stepping",
  "head_templates": [
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      "expansion": "timestepping",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
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        {
          "ref": "2015, Jesse Chan, Zheng Wang, Axel Modave, Jean-Francois Remacle, T. Warburton, “GPU-accelerated discontinuous Galerkin methods on hybrid meshes”, in arXiv",
          "text": "Computational efficiency is achieved under a combination of element-specific kernels (including new quadrature-free operators for the pyramid), multi-rate timestepping, and acceleration using Graphics Processing Units..",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A stepwise temporal analysis."
      ],
      "id": "en-timestepping-en-noun-QSxA0e3a",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "stepwise",
          "stepwise"
        ],
        [
          "temporal",
          "temporal"
        ],
        [
          "analysis",
          "analysis"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A stepwise temporal analysis."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "timestepping"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "time",
        "3": "stepping"
      },
      "expansion": "time + stepping",
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    }
  ],
  "etymology_text": "time + stepping",
  "head_templates": [
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        "1": "?"
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      "expansion": "timestepping",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Mathematics"
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        {
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          "text": "Computational efficiency is achieved under a combination of element-specific kernels (including new quadrature-free operators for the pyramid), multi-rate timestepping, and acceleration using Graphics Processing Units..",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A stepwise temporal analysis."
      ],
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        ],
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      "raw_glosses": [
        "(mathematics) A stepwise temporal analysis."
      ],
      "topics": [
        "mathematics",
        "sciences"
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  ],
  "word": "timestepping"
}