"biochemical oxygen demand" meaning in English

{
  "forms": [
    {
      "form": "biochemical oxygen demands",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "biochemical oxygen demand (countable and uncountable, plural biochemical oxygen demands)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biochemistry",
          "orig": "en:Biochemistry",
          "parents": [
            "Biology",
            "Chemistry",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Organic chemistry",
          "orig": "en:Organic chemistry",
          "parents": [
            "Chemistry",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Oxygen",
          "orig": "en:Oxygen",
          "parents": [
            "Chalcogens",
            "Chemical elements",
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The amount of oxygen needed by aerobic microorganisms to decompose all the organic matter in a sample of water, used as a measure of pollution."
      ],
      "id": "en-biochemical_oxygen_demand-en-noun-NqBSFhnD",
      "links": [
        [
          "aerobic",
          "aerobic"
        ],
        [
          "microorganism",
          "microorganism"
        ],
        [
          "decompose",
          "decompose"
        ],
        [
          "organic",
          "organic"
        ],
        [
          "water",
          "water"
        ],
        [
          "measure",
          "measure"
        ],
        [
          "pollution",
          "pollution"
        ]
      ],
      "synonyms": [
        {
          "word": "BOD"
        },
        {
          "word": "biological oxygen demand"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "word": "demande biochimique en oxygène"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "word": "Biochemische Sauerstoffbedarf"
        },
        {
          "code": "id",
          "lang": "Indonesian",
          "sense": "Translations",
          "word": "keperluan oksigen biokimia"
        },
        {
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "bioximične spožyvannja kysnju",
          "sense": "Translations",
          "word": "біохімічне споживання кисню"
        },
        {
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "BSK",
          "sense": "Translations",
          "word": "БСК"
        }
      ]
    }
  ],
  "word": "biochemical oxygen demand"
}

{
  "forms": [
    {
      "form": "biochemical oxygen demands",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "biochemical oxygen demand (countable and uncountable, plural biochemical oxygen demands)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "Translation table header lacks gloss",
        "en:Biochemistry",
        "en:Organic chemistry",
        "en:Oxygen"
      ],
      "glosses": [
        "The amount of oxygen needed by aerobic microorganisms to decompose all the organic matter in a sample of water, used as a measure of pollution."
      ],
      "links": [
        [
          "aerobic",
          "aerobic"
        ],
        [
          "microorganism",
          "microorganism"
        ],
        [
          "decompose",
          "decompose"
        ],
        [
          "organic",
          "organic"
        ],
        [
          "water",
          "water"
        ],
        [
          "measure",
          "measure"
        ],
        [
          "pollution",
          "pollution"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "BOD"
    },
    {
      "word": "biological oxygen demand"
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "word": "demande biochimique en oxygène"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "Biochemische Sauerstoffbedarf"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "Translations",
      "word": "keperluan oksigen biokimia"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "bioximične spožyvannja kysnju",
      "sense": "Translations",
      "word": "біохімічне споживання кисню"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "BSK",
      "sense": "Translations",
      "word": "БСК"
    }
  ],
  "word": "biochemical oxygen demand"
}