"isosbestic point" meaning in English

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      "form": "isosbestic points",
      "tags": [
        "plural"
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      "expansion": "isosbestic point (plural isosbestic points)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Spectroscopy",
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      "glosses": [
        "A specific wavelength at which two chemical species have the same molar absorptivity."
      ],
      "id": "en-isosbestic_point-en-noun-TYjPWL29",
      "links": [
        [
          "spectroscopy",
          "spectroscopy"
        ],
        [
          "wavelength",
          "wavelength"
        ],
        [
          "absorptivity",
          "absorptivity"
        ]
      ],
      "qualifier": "spectroscopy",
      "raw_glosses": [
        "(spectroscopy) A specific wavelength at which two chemical species have the same molar absorptivity."
      ]
    }
  ],
  "word": "isosbestic point"
}

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    {
      "form": "isosbestic points",
      "tags": [
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A specific wavelength at which two chemical species have the same molar absorptivity."
      ],
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          "spectroscopy",
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          "wavelength",
          "wavelength"
        ],
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          "absorptivity",
          "absorptivity"
        ]
      ],
      "qualifier": "spectroscopy",
      "raw_glosses": [
        "(spectroscopy) A specific wavelength at which two chemical species have the same molar absorptivity."
      ]
    }
  ],
  "word": "isosbestic point"
}