"pentasternum" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "penta-",
        "3": "sternum"
      },
      "expansion": "penta- + sternum",
      "name": "affix"
    }
  ],
  "etymology_text": "From penta- + sternum.",
  "forms": [
    {
      "form": "pentasterna",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "pentasterna"
      },
      "expansion": "pentasternum (plural pentasterna)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with penta-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Arachnology",
          "orig": "en:Arachnology",
          "parents": [
            "Arthropodology",
            "Zoology",
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2014 August 1, Ana Caroline O. Vasconcelos, Alessandro P. L. Giupponi, Rodrigo L. Ferreira, “A new species of Charinus from Minas Gerais State, Brazil, with comments on its sexual dimorphism (Arachnida: Amblypygi: Charinidae)”, in The Journal of Arachnology, volume 42, number 2, →DOI, page 156:",
          "text": "Sternum (Fig. 3): Tri-segmented with all segments sclerotized and convex. […] Third segment (pentasternum) rounded, with 1 upper pair of strong setae and several setulae encircling the base (in some specimens the upper pair of setae is similar in size to the basal setae",
          "type": "quote"
        }
      ],
      "glosses": [
        "The third sclerite of a segmented sternal complex."
      ],
      "id": "en-pentasternum-en-noun-8RDIdLmm",
      "links": [
        [
          "arachnology",
          "arachnology"
        ],
        [
          "sclerite",
          "sclerite"
        ],
        [
          "segmented",
          "segmented"
        ],
        [
          "sternal",
          "sternal"
        ],
        [
          "complex",
          "complex"
        ]
      ],
      "raw_glosses": [
        "(arachnology) The third sclerite of a segmented sternal complex."
      ],
      "topics": [
        "arachnology",
        "biology",
        "natural-sciences",
        "zoology"
      ]
    }
  ],
  "word": "pentasternum"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "penta-",
        "3": "sternum"
      },
      "expansion": "penta- + sternum",
      "name": "affix"
    }
  ],
  "etymology_text": "From penta- + sternum.",
  "forms": [
    {
      "form": "pentasterna",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "pentasterna"
      },
      "expansion": "pentasternum (plural pentasterna)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
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        "English nouns with irregular plurals",
        "English terms prefixed with penta-",
        "English terms with quotations",
        "Pages with 1 entry",
        "en:Arachnology"
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      "examples": [
        {
          "ref": "2014 August 1, Ana Caroline O. Vasconcelos, Alessandro P. L. Giupponi, Rodrigo L. Ferreira, “A new species of Charinus from Minas Gerais State, Brazil, with comments on its sexual dimorphism (Arachnida: Amblypygi: Charinidae)”, in The Journal of Arachnology, volume 42, number 2, →DOI, page 156:",
          "text": "Sternum (Fig. 3): Tri-segmented with all segments sclerotized and convex. […] Third segment (pentasternum) rounded, with 1 upper pair of strong setae and several setulae encircling the base (in some specimens the upper pair of setae is similar in size to the basal setae",
          "type": "quote"
        }
      ],
      "glosses": [
        "The third sclerite of a segmented sternal complex."
      ],
      "links": [
        [
          "arachnology",
          "arachnology"
        ],
        [
          "sclerite",
          "sclerite"
        ],
        [
          "segmented",
          "segmented"
        ],
        [
          "sternal",
          "sternal"
        ],
        [
          "complex",
          "complex"
        ]
      ],
      "raw_glosses": [
        "(arachnology) The third sclerite of a segmented sternal complex."
      ],
      "topics": [
        "arachnology",
        "biology",
        "natural-sciences",
        "zoology"
      ]
    }
  ],
  "word": "pentasternum"
}