"Euler's number" meaning in English

{
  "etymology_text": "Named after Swiss mathematician Leonhard Euler (1707–1783), who did, however, not discover it, although he likely gave the constant its modern symbol e.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Euler's number",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Numbers",
          "orig": "en:Numbers",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The mathematical constant e, the base of the natural logarithm; an irrational, transcendental number approximately equal to 2.71828."
      ],
      "id": "en-Euler's_number-en-name-Y9gxBh3I",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "e",
          "e"
        ],
        [
          "base",
          "base"
        ],
        [
          "natural logarithm",
          "natural logarithm"
        ],
        [
          "irrational",
          "irrational"
        ],
        [
          "transcendental",
          "transcendental"
        ],
        [
          "number",
          "number"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The mathematical constant e, the base of the natural logarithm; an irrational, transcendental number approximately equal to 2.71828."
      ],
      "synonyms": [
        {
          "word": "Napier's constant"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "the mathematical constant e",
          "word": "Neperin luku"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "the mathematical constant e",
          "tags": [
            "masculine"
          ],
          "word": "número de Neper"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "the mathematical constant e",
          "tags": [
            "masculine"
          ],
          "word": "número de Euler"
        }
      ],
      "wikipedia": [
        "Euler's constant",
        "Euler's number",
        "Leonhard Euler"
      ]
    }
  ],
  "word": "Euler's number"
}

{
  "etymology_text": "Named after Swiss mathematician Leonhard Euler (1707–1783), who did, however, not discover it, although he likely gave the constant its modern symbol e.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Euler's number",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Portuguese translations",
        "en:Mathematics",
        "en:Numbers"
      ],
      "glosses": [
        "The mathematical constant e, the base of the natural logarithm; an irrational, transcendental number approximately equal to 2.71828."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "e",
          "e"
        ],
        [
          "base",
          "base"
        ],
        [
          "natural logarithm",
          "natural logarithm"
        ],
        [
          "irrational",
          "irrational"
        ],
        [
          "transcendental",
          "transcendental"
        ],
        [
          "number",
          "number"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The mathematical constant e, the base of the natural logarithm; an irrational, transcendental number approximately equal to 2.71828."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Euler's constant",
        "Euler's number",
        "Leonhard Euler"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Napier's constant"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "the mathematical constant e",
      "word": "Neperin luku"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "the mathematical constant e",
      "tags": [
        "masculine"
      ],
      "word": "número de Neper"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "the mathematical constant e",
      "tags": [
        "masculine"
      ],
      "word": "número de Euler"
    }
  ],
  "word": "Euler's number"
}