"exponential decay" meaning in English

{
  "forms": [
    {
      "form": "exponential decays",
      "tags": [
        "plural"
      ]
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      "expansion": "exponential decay (countable and uncountable, plural exponential decays)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "name": "English entries with incorrect language header",
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          "langcode": "en",
          "name": "Functions",
          "orig": "en:Functions",
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            "Calculus",
            "Geometry",
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            "Fundamental"
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          "source": "w"
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      "examples": [
        {
          "ref": "2017, E. Biørn, Taxation, Technology, and the User Cost of Capital, page 239",
          "text": "The service value of the capital stock, i.e. the product of its price and quantity component, is decomposed into a depreciation component and an interest component, similar to the decomposition which holds under exponential decay.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A decrease where the rate of decrease is proportional to the amount remaining."
      ],
      "id": "en-exponential_decay-en-noun-hVrj-t3K",
      "links": [
        [
          "decrease",
          "decrease"
        ],
        [
          "rate",
          "rate"
        ],
        [
          "proportional",
          "proportional"
        ],
        [
          "remain",
          "remain"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "exponential decay"
      ]
    }
  ],
  "word": "exponential decay"
}

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      "form": "exponential decays",
      "tags": [
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  "lang_code": "en",
  "pos": "noun",
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        "English countable nouns",
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          "ref": "2017, E. Biørn, Taxation, Technology, and the User Cost of Capital, page 239",
          "text": "The service value of the capital stock, i.e. the product of its price and quantity component, is decomposed into a depreciation component and an interest component, similar to the decomposition which holds under exponential decay.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A decrease where the rate of decrease is proportional to the amount remaining."
      ],
      "links": [
        [
          "decrease",
          "decrease"
        ],
        [
          "rate",
          "rate"
        ],
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          "proportional",
          "proportional"
        ],
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          "remain",
          "remain"
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      "wikipedia": [
        "exponential decay"
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}