"Haversian system" meaning in English

{
  "etymology_text": "From Clopton Havers, English anatomist.",
  "forms": [
    {
      "form": "Haversian systems",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Haversian system (plural Haversian systems)",
      "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 entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Anatomy",
          "orig": "en:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The system of osteons in compact bone"
      ],
      "id": "en-Haversian_system-en-noun-hbG8Unaz",
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "osteon",
          "osteon"
        ]
      ],
      "raw_glosses": [
        "(anatomy) The system of osteons in compact bone"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ],
      "wikipedia": [
        "Clopton Havers"
      ]
    }
  ],
  "word": "Haversian system"
}

{
  "etymology_text": "From Clopton Havers, English anatomist.",
  "forms": [
    {
      "form": "Haversian systems",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Haversian system (plural Haversian systems)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Anatomy"
      ],
      "glosses": [
        "The system of osteons in compact bone"
      ],
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "osteon",
          "osteon"
        ]
      ],
      "raw_glosses": [
        "(anatomy) The system of osteons in compact bone"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ],
      "wikipedia": [
        "Clopton Havers"
      ]
    }
  ],
  "word": "Haversian system"
}