"chất bảo quản" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "質保管"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "質",
        "2": "substance",
        "3": "保管",
        "4": "to safeguard"
      },
      "expansion": "Sino-Vietnamese word from 質保管, composed of 質 (“substance”) and 保管 (“to safeguard”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 質保管, composed of 質 (“substance”) and 保管 (“to safeguard”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "chất bảo quản",
        "tr": ""
      },
      "expansion": "chất bảo quản",
      "name": "head"
    },
    {
      "args": {
        "head": "chất bảo quản"
      },
      "expansion": "chất bảo quản",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a preservative (chemical used to retard decay)"
      ],
      "id": "en-chất_bảo_quản-vi-noun-S2mDCkY3",
      "links": [
        [
          "preservative",
          "preservative"
        ],
        [
          "retard",
          "retard"
        ],
        [
          "decay",
          "decay"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕət̚˧˦ ʔɓaːw˧˩ kwaːn˧˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[t͡ɕək̚˦˧˥ ʔɓaːw˧˨ kwaːŋ˧˨]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[cək̚˦˥ ʔɓaːw˨˩˦ waːŋ˨˩˦]",
      "note": "Saigon"
    }
  ],
  "word": "chất bảo quản"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "質保管"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "質",
        "2": "substance",
        "3": "保管",
        "4": "to safeguard"
      },
      "expansion": "Sino-Vietnamese word from 質保管, composed of 質 (“substance”) and 保管 (“to safeguard”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 質保管, composed of 質 (“substance”) and 保管 (“to safeguard”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "chất bảo quản",
        "tr": ""
      },
      "expansion": "chất bảo quản",
      "name": "head"
    },
    {
      "args": {
        "head": "chất bảo quản"
      },
      "expansion": "chất bảo quản",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese terms with IPA pronunciation"
      ],
      "glosses": [
        "a preservative (chemical used to retard decay)"
      ],
      "links": [
        [
          "preservative",
          "preservative"
        ],
        [
          "retard",
          "retard"
        ],
        [
          "decay",
          "decay"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕət̚˧˦ ʔɓaːw˧˩ kwaːn˧˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[t͡ɕək̚˦˧˥ ʔɓaːw˧˨ kwaːŋ˧˨]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[cək̚˦˥ ʔɓaːw˨˩˦ waːŋ˨˩˦]",
      "note": "Saigon"
    }
  ],
  "word": "chất bảo quản"
}