"circumvolutions" meaning in English

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          "ref": "1835, Edgar Allan Poe, The Unparalleled Adventures of One Hans Pfaal, page 5:",
          "text": "It is said, on the contrary, that during each and every one of his one-and twenty circumvolutions he emitted no less than one-and-twenty distinct and furious whiffs from his pipe, to which he held fast the whole time with all his might...",
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      "form_of": [
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          "word": "circumvolution"
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        "plural of circumvolution"
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  "word": "circumvolutions"
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          "ref": "1835, Edgar Allan Poe, The Unparalleled Adventures of One Hans Pfaal, page 5:",
          "text": "It is said, on the contrary, that during each and every one of his one-and twenty circumvolutions he emitted no less than one-and-twenty distinct and furious whiffs from his pipe, to which he held fast the whole time with all his might...",
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