"solução tampão" meaning in Portuguese

{
  "forms": [
    {
      "form": "soluções tampão",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "+first"
      },
      "expansion": "solução tampão f (plural soluções tampão)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "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": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "pt",
          "name": "Chemistry",
          "orig": "pt:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "buffer solution (solution that maintains a constant pH)"
      ],
      "id": "en-solução_tampão-pt-noun-5HGiiohs",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "buffer solution",
          "buffer solution"
        ]
      ],
      "raw_glosses": [
        "(chemistry) buffer solution (solution that maintains a constant pH)"
      ],
      "synonyms": [
        {
          "word": "solução-tampão"
        }
      ],
      "tags": [
        "feminine"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "solução tampão"
}

{
  "forms": [
    {
      "form": "soluções tampão",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "+first"
      },
      "expansion": "solução tampão f (plural soluções tampão)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Portuguese countable nouns",
        "Portuguese entries with incorrect language header",
        "Portuguese feminine nouns",
        "Portuguese lemmas",
        "Portuguese multiword terms",
        "Portuguese nouns",
        "Portuguese nouns with red links in their headword lines",
        "pt:Chemistry"
      ],
      "glosses": [
        "buffer solution (solution that maintains a constant pH)"
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "buffer solution",
          "buffer solution"
        ]
      ],
      "raw_glosses": [
        "(chemistry) buffer solution (solution that maintains a constant pH)"
      ],
      "tags": [
        "feminine"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "solução-tampão"
    }
  ],
  "word": "solução tampão"
}