"spark test" meaning in English

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  "etymology_text": "spark + test.\nFrom producing sparks to test for the character of a steel.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
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      "glosses": [
        "To test for the general character of a steel, when testing a piece of steel, by grinding it, producing sparks, using color of sparks to determine its general classification."
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        "(metalworking) To test for the general character of a steel, when testing a piece of steel, by grinding it, producing sparks, using color of sparks to determine its general classification."
      ],
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          "word": "spark testing"
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        "metallurgy",
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        "natural-sciences",
        "physical-sciences"
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  "word": "spark test"
}

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  ],
  "etymology_text": "spark + test.\nFrom producing sparks to test for the character of a steel.",
  "forms": [
    {
      "form": "spark tests",
      "tags": [
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        "An instance of spark testing."
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  "etymology_text": "spark + test.\nFrom producing sparks to test for the character of a steel.",
  "forms": [
    {
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        "To test for the general character of a steel, when testing a piece of steel, by grinding it, producing sparks, using color of sparks to determine its general classification."
      ],
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        "(metalworking) To test for the general character of a steel, when testing a piece of steel, by grinding it, producing sparks, using color of sparks to determine its general classification."
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    "English multiword terms",
    "English nouns",
    "English verbs"
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  "etymology_text": "spark + test.\nFrom producing sparks to test for the character of a steel.",
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