"ppt" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Sigles en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Unités de mesure en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "(Sigle) Sigle de parts per trillion (« partie par billion »). Il est à noter que trillion en anglais est billion en français."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "notes": [
    "Le National Institute of Standards and Technology des États-Unis recommande de ne pas utiliser ppm, ppb, ppt, etc."
  ],
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "ppm"
    },
    {
      "word": "ppb"
    },
    {
      "word": "ppq"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Partie par billion."
      ],
      "id": "fr-ppt-en-noun-A1w5~y-M"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌpi.ˌpi.ˈti\\",
      "raw_tags": [
        "États-Unis"
      ]
    },
    {
      "ipa": "\\ˌpiː.ˌpiː.ˈtiː\\",
      "raw_tags": [
        "Royaume-Uni"
      ]
    }
  ],
  "tags": [
    "invariable"
  ],
  "word": "ppt"
}

{
  "categories": [
    "Lemmes en anglais",
    "Noms communs en anglais",
    "Sigles en anglais",
    "Unités de mesure en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "(Sigle) Sigle de parts per trillion (« partie par billion »). Il est à noter que trillion en anglais est billion en français."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "notes": [
    "Le National Institute of Standards and Technology des États-Unis recommande de ne pas utiliser ppm, ppb, ppt, etc."
  ],
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "ppm"
    },
    {
      "word": "ppb"
    },
    {
      "word": "ppq"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Partie par billion."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌpi.ˌpi.ˈti\\",
      "raw_tags": [
        "États-Unis"
      ]
    },
    {
      "ipa": "\\ˌpiː.ˌpiː.ˈtiː\\",
      "raw_tags": [
        "Royaume-Uni"
      ]
    }
  ],
  "tags": [
    "invariable"
  ],
  "word": "ppt"
}