"antitrigonometric function" meaning in English

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      "expansion": "Etymology tree\nEnglish anti-\nEnglish trigonometric function\nEnglish antitrigonometric function\nFrom anti- + trigonometric function.",
      "name": "ety"
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  "etymology_text": "Etymology tree\nEnglish anti-\nEnglish trigonometric function\nEnglish antitrigonometric function\nFrom anti- + trigonometric function.",
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      "form": "antitrigonometric functions",
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      "expansion": "antitrigonometric function (plural antitrigonometric functions)",
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        "Synonym of inverse trigonometric function."
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        "(mathematics) Synonym of inverse trigonometric function."
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  "word": "antitrigonometric function"
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  "etymology_text": "Etymology tree\nEnglish anti-\nEnglish trigonometric function\nEnglish antitrigonometric function\nFrom anti- + trigonometric function.",
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