"preprojective" meaning in English

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  "etymology_text": "From pre- + projective.",
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  "lang_code": "en",
  "pos": "adj",
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          "ref": "2015, Jie Ren, Yan Soibelman, “Cohomological Hall algebras, semicanonical bases and Donaldson-Thomas invariants for 2-dimensional Calabi-Yau categories”, in arXiv:",
          "text": "Mozgovoy in the case of preprojective algebras)..",
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        "Exhibiting a generalization of being projective, in which some, but not every surjective homomorphism splits."
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        "(mathematics) Exhibiting a generalization of being projective, in which some, but not every surjective homomorphism splits."
      ],
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        {
          "word": "preprojection"
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      ],
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        "not-comparable"
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  "word": "preprojective"
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  "etymology_text": "From pre- + projective.",
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    {
      "word": "preprojection"
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        "(mathematics) Exhibiting a generalization of being projective, in which some, but not every surjective homomorphism splits."
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  "word": "preprojective"
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