"ペンテン" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "en",
        "3": "pentene"
      },
      "expansion": "English pentene",
      "name": "bor"
    }
  ],
  "etymology_text": "From English pentene.",
  "forms": [
    {
      "form": "penten",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ペンテン • (penten)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese katakana",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Organic compounds",
          "orig": "ja:Organic compounds",
          "parents": [
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "pentene"
      ],
      "id": "en-ペンテン-ja-noun-uEV2jdY8",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "pentene",
          "pentene"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) pentene"
      ],
      "related": [
        {
          "roman": "aruken",
          "word": "アルケン"
        }
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "ペンテン"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "en",
        "3": "pentene"
      },
      "expansion": "English pentene",
      "name": "bor"
    }
  ],
  "etymology_text": "From English pentene.",
  "forms": [
    {
      "form": "penten",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ペンテン • (penten)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "related": [
    {
      "roman": "aruken",
      "word": "アルケン"
    }
  ],
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese katakana",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms borrowed from English",
        "Japanese terms derived from English",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Organic compounds"
      ],
      "glosses": [
        "pentene"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "pentene",
          "pentene"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) pentene"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "ペンテン"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "ペンテン"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "ペンテン",
  "trace": ""
}