"neper" meaning in English

{
  "etymology_text": "From Joannes Neper, the Latinized name of John Napier, a Scottish mathematician.",
  "forms": [
    {
      "form": "nepers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "neper (plural nepers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Electronics",
          "orig": "en:Electronics",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1994, T. G. Leighton, The Acoustic Bubble, page 28:",
          "text": "Values of b, the amplitude attenuation constant, are given for various materials in Table 1.1. Having dimensions of [length]⁻¹, it is usually measured in nepers per centimetre (Np cm⁻¹).",
          "type": "quote"
        },
        {
          "ref": "2006, R. K. Shevgaonkar, Electromagnetic Waves, page 15:",
          "text": "The unit of α is nepers per meter. It can be easily seen that if a line has an attenuation constant of 1 neper/m, a unit amplitude voltage wave will reduce to e⁻¹ over a distance of 1 meter.",
          "type": "quote"
        },
        {
          "ref": "2008, Alan J. Fenn, Adaptive Phased Array Thermotherapy for Cancer, page 105:",
          "text": "The attenuation constant for the phantom muscle tissue is αₘ = 10.0 nepers/m.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A non-SI unit of the attenuation (or sometimes gain) of field and power quantities such as electronic signals; the natural logarithm of a ratio, with 1 Np (a ratio of 2.718:1) being equivalent to 8.686 dB."
      ],
      "id": "en-neper-en-noun-cGWCzWi9",
      "links": [
        [
          "electronics",
          "electronics"
        ],
        [
          "SI",
          "SI"
        ],
        [
          "unit",
          "unit"
        ],
        [
          "attenuation",
          "attenuation"
        ],
        [
          "gain",
          "gain"
        ],
        [
          "natural logarithm",
          "natural logarithm"
        ]
      ],
      "raw_glosses": [
        "(electronics) A non-SI unit of the attenuation (or sometimes gain) of field and power quantities such as electronic signals; the natural logarithm of a ratio, with 1 Np (a ratio of 2.718:1) being equivalent to 8.686 dB."
      ],
      "related": [
        {
          "word": "Np"
        }
      ],
      "topics": [
        "business",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "electronics",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "John Napier",
        "neper"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-eɪpə(ɹ)"
    }
  ],
  "word": "neper"
}

{
  "etymology_text": "From Joannes Neper, the Latinized name of John Napier, a Scottish mathematician.",
  "forms": [
    {
      "form": "nepers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "neper (plural nepers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Np"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "Pages with 4 entries",
        "Pages with entries",
        "Rhymes:English/eɪpə(ɹ)",
        "Rhymes:English/eɪpə(ɹ)/2 syllables",
        "en:Electronics"
      ],
      "examples": [
        {
          "ref": "1994, T. G. Leighton, The Acoustic Bubble, page 28:",
          "text": "Values of b, the amplitude attenuation constant, are given for various materials in Table 1.1. Having dimensions of [length]⁻¹, it is usually measured in nepers per centimetre (Np cm⁻¹).",
          "type": "quote"
        },
        {
          "ref": "2006, R. K. Shevgaonkar, Electromagnetic Waves, page 15:",
          "text": "The unit of α is nepers per meter. It can be easily seen that if a line has an attenuation constant of 1 neper/m, a unit amplitude voltage wave will reduce to e⁻¹ over a distance of 1 meter.",
          "type": "quote"
        },
        {
          "ref": "2008, Alan J. Fenn, Adaptive Phased Array Thermotherapy for Cancer, page 105:",
          "text": "The attenuation constant for the phantom muscle tissue is αₘ = 10.0 nepers/m.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A non-SI unit of the attenuation (or sometimes gain) of field and power quantities such as electronic signals; the natural logarithm of a ratio, with 1 Np (a ratio of 2.718:1) being equivalent to 8.686 dB."
      ],
      "links": [
        [
          "electronics",
          "electronics"
        ],
        [
          "SI",
          "SI"
        ],
        [
          "unit",
          "unit"
        ],
        [
          "attenuation",
          "attenuation"
        ],
        [
          "gain",
          "gain"
        ],
        [
          "natural logarithm",
          "natural logarithm"
        ]
      ],
      "raw_glosses": [
        "(electronics) A non-SI unit of the attenuation (or sometimes gain) of field and power quantities such as electronic signals; the natural logarithm of a ratio, with 1 Np (a ratio of 2.718:1) being equivalent to 8.686 dB."
      ],
      "topics": [
        "business",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "electronics",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "John Napier",
        "neper"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-eɪpə(ɹ)"
    }
  ],
  "word": "neper"
}