"tetrinic acid" meaning in English

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  "etymology_text": "See tetra- (“four”). It was once supposed to contain a peculiar radical of four carbon atoms.",
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      "glosses": [
        "A complex ketonic acid, C₅H₆O₃."
      ],
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      "raw_glosses": [
        "(chemistry) A complex ketonic acid, C₅H₆O₃."
      ],
      "synonyms": [
        {
          "word": "acetylacrylic acid"
        }
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  "word": "tetrinic acid"
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        "A complex ketonic acid, C₅H₆O₃."
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        "(chemistry) A complex ketonic acid, C₅H₆O₃."
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  "synonyms": [
    {
      "word": "acetylacrylic acid"
    }
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  "word": "tetrinic acid"
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