"stock variable" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "coordinate_terms": [
        {
          "word": "flow variable"
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      "glosses": [
        "A variable whose value depends on an instant rather than on a period of time."
      ],
      "id": "en-stock_variable-en-noun-P70R0OtY",
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          "economics",
          "economics"
        ],
        [
          "accounting",
          "accounting#Noun"
        ],
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          "instant",
          "instant"
        ]
      ],
      "raw_glosses": [
        "(economics, accounting) A variable whose value depends on an instant rather than on a period of time."
      ],
      "topics": [
        "accounting",
        "business",
        "economics",
        "finance",
        "sciences"
      ],
      "wikipedia": [
        "Stock and flow"
      ]
    }
  ],
  "word": "stock variable"
}

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  "lang_code": "en",
  "pos": "noun",
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        "A variable whose value depends on an instant rather than on a period of time."
      ],
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        [
          "economics",
          "economics"
        ],
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          "accounting",
          "accounting#Noun"
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        "(economics, accounting) A variable whose value depends on an instant rather than on a period of time."
      ],
      "topics": [
        "accounting",
        "business",
        "economics",
        "finance",
        "sciences"
      ],
      "wikipedia": [
        "Stock and flow"
      ]
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  "word": "stock variable"
}