"Stark effect" meaning in English

{
  "etymology_text": "From Johannes Stark, German physicist and chemist.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The splitting and shift of a spectral line into several components in the presence of an electric field."
      ],
      "id": "en-Stark_effect-en-noun-x-rQWAr8",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "splitting",
          "splitting"
        ],
        [
          "shift",
          "shift"
        ],
        [
          "spectral line",
          "spectral line"
        ],
        [
          "electric field",
          "electric field"
        ]
      ],
      "raw_glosses": [
        "(physics) The splitting and shift of a spectral line into several components in the presence of an electric field."
      ],
      "related": [
        {
          "word": "Zeeman effect"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Johannes Stark",
        "Stark effect"
      ]
    }
  ],
  "word": "Stark effect"
}

{
  "etymology_text": "From Johannes Stark, German physicist and chemist.",
  "head_templates": [
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      "expansion": "Stark effect",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Zeeman effect"
    }
  ],
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      "glosses": [
        "The splitting and shift of a spectral line into several components in the presence of an electric field."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "splitting",
          "splitting"
        ],
        [
          "shift",
          "shift"
        ],
        [
          "spectral line",
          "spectral line"
        ],
        [
          "electric field",
          "electric field"
        ]
      ],
      "raw_glosses": [
        "(physics) The splitting and shift of a spectral line into several components in the presence of an electric field."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Johannes Stark",
        "Stark effect"
      ]
    }
  ],
  "word": "Stark effect"
}