"arcsin" meaning in English

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      "expansion": "arc- + sin",
      "name": "prefix"
    }
  ],
  "etymology_text": "From arc- + sin.",
  "forms": [
    {
      "form": "arcsins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "expansion": "arcsin (plural arcsins)",
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  "lang_code": "en",
  "pos": "noun",
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        {
          "word": "arcsine"
        }
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          "orig": "en:Trigonometric functions",
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      "glosses": [
        "Abbreviation of arcsine."
      ],
      "id": "en-arcsin-en-noun-zP71faMS",
      "links": [
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          "arcsine#English"
        ]
      ],
      "related": [
        {
          "word": "arccos"
        },
        {
          "word": "arctan"
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of"
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    }
  ],
  "word": "arcsin"
}

{
  "etymology_templates": [
    {
      "args": {
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        "2": "arc",
        "3": "sin"
      },
      "expansion": "arc- + sin",
      "name": "prefix"
    }
  ],
  "etymology_text": "From arc- + sin.",
  "forms": [
    {
      "form": "arcsins",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "arcsin (plural arcsins)",
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  "lang_code": "en",
  "pos": "noun",
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    {
      "word": "arccos"
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      "word": "arctan"
    }
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        {
          "word": "arcsine"
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        "Abbreviation of arcsine."
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  "word": "arcsin"
}