"hyperextendable" meaning in English

{
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        "2": "hyper",
        "3": "extendable"
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      "expansion": "hyper- + extendable",
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    }
  ],
  "etymology_text": "From hyper- + extendable.",
  "head_templates": [
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      "expansion": "hyperextendable (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "ref": "2015 June 8, Melanie May et al., “ZC4H2, an XLID gene, is required for the generation of a specific subset of CNS interneurons”, in Human Molecular Genetics, volume 24, →DOI:",
          "text": "Patients had microcephaly, short stature, mild spasticity, thoracic scoliosis, hyperextendable MCP joints, rocker-bottom feet, hyperextended elbows and knees.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Capable of hyperextension."
      ],
      "id": "en-hyperextendable-en-adj-51RMRtgX",
      "links": [
        [
          "hyperextension",
          "hyperextension"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "hyperextendable"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "hyper",
        "3": "extendable"
      },
      "expansion": "hyper- + extendable",
      "name": "prefix"
    }
  ],
  "etymology_text": "From hyper- + extendable.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "hyperextendable (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
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        {
          "ref": "2015 June 8, Melanie May et al., “ZC4H2, an XLID gene, is required for the generation of a specific subset of CNS interneurons”, in Human Molecular Genetics, volume 24, →DOI:",
          "text": "Patients had microcephaly, short stature, mild spasticity, thoracic scoliosis, hyperextendable MCP joints, rocker-bottom feet, hyperextended elbows and knees.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Capable of hyperextension."
      ],
      "links": [
        [
          "hyperextension",
          "hyperextension"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "hyperextendable"
}