"Malmquist bias" meaning in English

{
  "etymology_text": "Named after Swedish astronomer Gunnar Malmquist, who first described the effect in 1922.",
  "head_templates": [
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      "expansion": "Malmquist bias (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biases",
          "orig": "en:Biases",
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      ],
      "coordinate_terms": [
        {
          "word": "bias"
        },
        {
          "word": "observational bias"
        },
        {
          "word": "observation bias"
        },
        {
          "word": "selection bias"
        },
        {
          "word": "selection effect"
        },
        {
          "word": "statistical bias"
        },
        {
          "word": "systematic bias"
        }
      ],
      "derived": [
        {
          "word": "classical Malmquist bias"
        },
        {
          "word": "Eddington-Malmquist bias"
        },
        {
          "word": "statistical Malmquist bias"
        },
        {
          "word": "systematic Malmquist bias"
        }
      ],
      "glosses": [
        "A type of selection bias, where brighter objects appear to be more common at further distances; caused by a larger actual sample gathering region per square degree at further distances, and that dimmer sources drop out of sight due to distance."
      ],
      "id": "en-Malmquist_bias-en-noun-zR~cLCTu",
      "links": [
        [
          "selection bias",
          "selection bias#English"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "Malmquistin valintaharha"
        }
      ],
      "wikipedia": [
        "en:Gunnar Malmquist"
      ]
    }
  ],
  "word": "Malmquist bias"
}

{
  "coordinate_terms": [
    {
      "word": "bias"
    },
    {
      "word": "observational bias"
    },
    {
      "word": "observation bias"
    },
    {
      "word": "selection bias"
    },
    {
      "word": "selection effect"
    },
    {
      "word": "statistical bias"
    },
    {
      "word": "systematic bias"
    }
  ],
  "derived": [
    {
      "word": "classical Malmquist bias"
    },
    {
      "word": "Eddington-Malmquist bias"
    },
    {
      "word": "statistical Malmquist bias"
    },
    {
      "word": "systematic Malmquist bias"
    }
  ],
  "etymology_text": "Named after Swedish astronomer Gunnar Malmquist, who first described the effect in 1922.",
  "head_templates": [
    {
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      "expansion": "Malmquist bias (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "en:Biases"
      ],
      "glosses": [
        "A type of selection bias, where brighter objects appear to be more common at further distances; caused by a larger actual sample gathering region per square degree at further distances, and that dimmer sources drop out of sight due to distance."
      ],
      "links": [
        [
          "selection bias",
          "selection bias#English"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "en:Gunnar Malmquist"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "Malmquistin valintaharha"
    }
  ],
  "word": "Malmquist bias"
}