"superextension" meaning in English

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  "etymology_text": "From super- + extension.",
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          "ref": "2016, J.P. Ang, Martin Rocek, John Schulman, “Kahler-Einstein and Kahler scalar flat supermanifolds”, in arXiv:",
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  "word": "superextension"
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  "etymology_text": "From super- + extension.",
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