"Sagan standard" meaning in English

{
  "etymology_text": "Named for Carl Sagan.",
  "forms": [
    {
      "form": "the Sagan standard",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Sagan standard",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Epistemology",
          "orig": "en:Epistemology",
          "parents": [
            "Philosophy",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The standard that extraordinary claims require extraordinary evidence."
      ],
      "id": "en-Sagan_standard-en-name-pTXjyUki",
      "links": [
        [
          "extraordinary claims require extraordinary evidence",
          "extraordinary claims require extraordinary evidence"
        ]
      ],
      "wikipedia": [
        "Carl Sagan",
        "Sagan standard"
      ]
    }
  ],
  "word": "Sagan standard"
}

{
  "etymology_text": "Named for Carl Sagan.",
  "forms": [
    {
      "form": "the Sagan standard",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Sagan standard",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English entries with topic categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Epistemology"
      ],
      "glosses": [
        "The standard that extraordinary claims require extraordinary evidence."
      ],
      "links": [
        [
          "extraordinary claims require extraordinary evidence",
          "extraordinary claims require extraordinary evidence"
        ]
      ],
      "wikipedia": [
        "Carl Sagan",
        "Sagan standard"
      ]
    }
  ],
  "word": "Sagan standard"
}