"total base number" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A measurement of the basicity of an oil, expressed in terms of the number of milligrams of potassium hydroxide per gram of oil sample."
      ],
      "id": "en-total_base_number-en-noun-GI6FmjNr",
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          "chemistry",
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        [
          "basicity",
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        ],
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          "oil",
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        ],
        [
          "potassium hydroxide",
          "potassium hydroxide"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A measurement of the basicity of an oil, expressed in terms of the number of milligrams of potassium hydroxide per gram of oil sample."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
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      "wikipedia": [
        "total base number"
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  "word": "total base number"
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        "A measurement of the basicity of an oil, expressed in terms of the number of milligrams of potassium hydroxide per gram of oil sample."
      ],
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          "chemistry",
          "chemistry"
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        [
          "basicity",
          "basicity"
        ],
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          "oil",
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        ],
        [
          "potassium hydroxide",
          "potassium hydroxide"
        ]
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        "(chemistry) A measurement of the basicity of an oil, expressed in terms of the number of milligrams of potassium hydroxide per gram of oil sample."
      ],
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        "chemistry",
        "natural-sciences",
        "physical-sciences"
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