"nondetection" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "detection"
      },
      "expansion": "non- + detection",
      "name": "prefix"
    }
  ],
  "etymology_text": "From non- + detection.",
  "forms": [
    {
      "form": "nondetections",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "nondetection (countable and uncountable, plural nondetections)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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          "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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        {
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          "name": "English terms prefixed with non-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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      ],
      "examples": [
        {
          "ref": "1986, Journal of the National Cancer Institute: JNCI, volume 77, page 661",
          "text": "Nondetection or nonnotification of cancer has been shown to be most common among patients older than 75 years at the time of diagnosis.",
          "type": "quotation"
        },
        {
          "ref": "2008, C. Swyngedouw, R. Lessard, “Quality Control in Soil Chemical Analysis”, in Soil Sampling and Methods of Analysis, page 56",
          "text": "Still, at the 3 sigma level, there is about a 50% chance of a false negative if data are censored below that level and are treated as nondetections.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A failure to detect; a negative result"
      ],
      "id": "en-nondetection-en-noun-BHE1Q3r7",
      "links": [
        [
          "detect",
          "detect"
        ]
      ],
      "related": [
        {
          "word": "detection"
        },
        {
          "word": "misdetection"
        }
      ],
      "synonyms": [
        {
          "word": "non-detection"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "nondetection"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "detection"
      },
      "expansion": "non- + detection",
      "name": "prefix"
    }
  ],
  "etymology_text": "From non- + detection.",
  "forms": [
    {
      "form": "nondetections",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "nondetection (countable and uncountable, plural nondetections)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "detection"
    },
    {
      "word": "misdetection"
    }
  ],
  "senses": [
    {
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      "examples": [
        {
          "ref": "1986, Journal of the National Cancer Institute: JNCI, volume 77, page 661",
          "text": "Nondetection or nonnotification of cancer has been shown to be most common among patients older than 75 years at the time of diagnosis.",
          "type": "quotation"
        },
        {
          "ref": "2008, C. Swyngedouw, R. Lessard, “Quality Control in Soil Chemical Analysis”, in Soil Sampling and Methods of Analysis, page 56",
          "text": "Still, at the 3 sigma level, there is about a 50% chance of a false negative if data are censored below that level and are treated as nondetections.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A failure to detect; a negative result"
      ],
      "links": [
        [
          "detect",
          "detect"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "non-detection"
    }
  ],
  "word": "nondetection"
}