"æquivalency" meaning in English

{
  "forms": [
    {
      "form": "æquivalencies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "æquivalency (countable and uncountable, plural æquivalencies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "equivalency"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w"
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          "kind": "other",
          "name": "English terms suffixed with -ency",
          "parents": [],
          "source": "w"
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          "name": "English terms with redundant sortkeys",
          "parents": [
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            "Entry maintenance"
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      "examples": [
        {
          "ref": "1894, Carroll Cornelius Pratt, Psychological Review, volume 1, American Psychological Association, page 5",
          "text": "While to postpone the gift of the title until some law, like that of gravitation in physics or of chemical æquivalency in chemistry, has been discovered, is to assume, unwarrantably, that some such law is actually followed by the phenomena.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Obsolete spelling of equivalency"
      ],
      "id": "en-æquivalency-en-noun-A81-8czN",
      "links": [
        [
          "equivalency",
          "equivalency#English"
        ]
      ],
      "tags": [
        "alt-of",
        "countable",
        "obsolete",
        "uncountable"
      ]
    }
  ],
  "word": "æquivalency"
}

{
  "forms": [
    {
      "form": "æquivalencies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "æquivalency (countable and uncountable, plural æquivalencies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "equivalency"
        }
      ],
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        "English countable nouns",
        "English entries with incorrect language header",
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        "English nouns",
        "English obsolete forms",
        "English terms spelled with Æ",
        "English terms suffixed with -ency",
        "English terms with quotations",
        "English terms with redundant sortkeys",
        "English uncountable nouns",
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      "examples": [
        {
          "ref": "1894, Carroll Cornelius Pratt, Psychological Review, volume 1, American Psychological Association, page 5",
          "text": "While to postpone the gift of the title until some law, like that of gravitation in physics or of chemical æquivalency in chemistry, has been discovered, is to assume, unwarrantably, that some such law is actually followed by the phenomena.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Obsolete spelling of equivalency"
      ],
      "links": [
        [
          "equivalency",
          "equivalency#English"
        ]
      ],
      "tags": [
        "alt-of",
        "countable",
        "obsolete",
        "uncountable"
      ]
    }
  ],
  "word": "æquivalency"
}