"乳酸" meaning in Japonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Japonais",
      "orig": "japonais",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "乳酸菌"
    }
  ],
  "etymology_texts": [
    "Composé de 乳, nyū (« lait ») et de 酸, san (« acide »)."
  ],
  "forms": [
    {
      "form": "にゅうさん",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "nyūsan",
      "tags": [
        "transcription"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en japonais de la biochimie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Acide lactique."
      ],
      "id": "fr-乳酸-ja-noun-QkTmIZJ-",
      "topics": [
        "biochemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\nʲɯː.saɴ\\"
    }
  ],
  "word": "乳酸"
}

{
  "categories": [
    "Noms communs en japonais",
    "japonais"
  ],
  "derived": [
    {
      "word": "乳酸菌"
    }
  ],
  "etymology_texts": [
    "Composé de 乳, nyū (« lait ») et de 酸, san (« acide »)."
  ],
  "forms": [
    {
      "form": "にゅうさん",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "nyūsan",
      "tags": [
        "transcription"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en japonais de la biochimie"
      ],
      "glosses": [
        "Acide lactique."
      ],
      "topics": [
        "biochemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\nʲɯː.saɴ\\"
    }
  ],
  "word": "乳酸"
}