"(aq)" meaning in Translingual

{
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "en",
        "3": "aqueous"
      },
      "expansion": "English aqueous",
      "name": "der"
    }
  ],
  "etymology_text": "From English aqueous.",
  "forms": [
    {
      "form": "aq",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "symbol"
      },
      "expansion": "(aq)",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Chemistry",
          "orig": "mul:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Ag⁺ (aq)",
          "text": "Positive silver ions dissolved in water."
        }
      ],
      "glosses": [
        "Appended, sometimes in subscript, to the end of a chemical formula, indicating that the material is dissolved in water."
      ],
      "id": "en-(aq)-mul-symbol-kNsdjt4a",
      "links": [
        [
          "chemistry",
          "chemistry"
        ]
      ],
      "raw_glosses": [
        "(chemistry) Appended, sometimes in subscript, to the end of a chemical formula, indicating that the material is dissolved in water."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "(aq)"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "en",
        "3": "aqueous"
      },
      "expansion": "English aqueous",
      "name": "der"
    }
  ],
  "etymology_text": "From English aqueous.",
  "forms": [
    {
      "form": "aq",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "symbol"
      },
      "expansion": "(aq)",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual symbols",
        "Translingual terms derived from English",
        "Translingual terms spelled with parentheses",
        "mul:Chemistry"
      ],
      "examples": [
        {
          "ref": "Ag⁺ (aq)",
          "text": "Positive silver ions dissolved in water."
        }
      ],
      "glosses": [
        "Appended, sometimes in subscript, to the end of a chemical formula, indicating that the material is dissolved in water."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ]
      ],
      "raw_glosses": [
        "(chemistry) Appended, sometimes in subscript, to the end of a chemical formula, indicating that the material is dissolved in water."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "(aq)"
}