"ppm" meaning in English

{
  "forms": [
    {
      "form": "ppm",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ppm"
      },
      "expansion": "ppm (plural ppm)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0",
      "word": "percent"
    },
    {
      "_dis1": "0 0",
      "word": "permille"
    },
    {
      "_dis1": "0 0",
      "word": "permyriad"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "_dis": "96 4",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "76 24",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "80 20",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "(common) Parts per million. (10000 ppm = 1%)"
      ],
      "id": "en-ppm-en-noun-HKZjdMrm",
      "links": [
        [
          "initialism",
          "initialism"
        ]
      ],
      "raw_glosses": [
        "(initialism) (common) Parts per million. (10000 ppm = 1%)"
      ],
      "related": [
        {
          "_dis1": "96 4",
          "sense": "parts per million",
          "word": "ppb"
        },
        {
          "_dis1": "96 4",
          "sense": "parts per million",
          "word": "ppt"
        },
        {
          "_dis1": "96 4",
          "sense": "parts per million",
          "word": "ppq"
        }
      ],
      "synonyms": [
        {
          "_dis1": "96 4",
          "sense": "parts per million",
          "word": "µU"
        },
        {
          "_dis1": "96 4",
          "sense": "parts per million",
          "word": "microuno"
        }
      ],
      "tags": [
        "initialism"
      ]
    },
    {
      "categories": [],
      "coordinate_terms": [
        {
          "_dis1": "19 81",
          "sense": "pages per minute",
          "word": "cps"
        },
        {
          "_dis1": "19 81",
          "sense": "pages per minute",
          "word": "wpm"
        }
      ],
      "glosses": [
        "page(s) per minute"
      ],
      "id": "en-ppm-en-noun-tczPQkyc",
      "links": [
        [
          "initialism",
          "initialism"
        ]
      ],
      "raw_glosses": [
        "(initialism) page(s) per minute"
      ],
      "tags": [
        "initialism"
      ]
    }
  ],
  "word": "ppm"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English indeclinable nouns",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English words without vowels",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "coordinate_terms": [
    {
      "sense": "pages per minute",
      "word": "cps"
    },
    {
      "sense": "pages per minute",
      "word": "wpm"
    }
  ],
  "forms": [
    {
      "form": "ppm",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ppm"
      },
      "expansion": "ppm (plural ppm)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "sense": "parts per million",
      "word": "ppb"
    },
    {
      "sense": "parts per million",
      "word": "ppt"
    },
    {
      "sense": "parts per million",
      "word": "ppq"
    },
    {
      "word": "percent"
    },
    {
      "word": "permille"
    },
    {
      "word": "permyriad"
    }
  ],
  "senses": [
    {
      "categories": [
        "English initialisms"
      ],
      "glosses": [
        "(common) Parts per million. (10000 ppm = 1%)"
      ],
      "links": [
        [
          "initialism",
          "initialism"
        ]
      ],
      "raw_glosses": [
        "(initialism) (common) Parts per million. (10000 ppm = 1%)"
      ],
      "tags": [
        "initialism"
      ]
    },
    {
      "categories": [
        "English initialisms"
      ],
      "glosses": [
        "page(s) per minute"
      ],
      "links": [
        [
          "initialism",
          "initialism"
        ]
      ],
      "raw_glosses": [
        "(initialism) page(s) per minute"
      ],
      "tags": [
        "initialism"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "parts per million",
      "word": "µU"
    },
    {
      "sense": "parts per million",
      "word": "microuno"
    }
  ],
  "word": "ppm"
}