"parsimony principle" meaning in English

{
  "forms": [
    {
      "form": "the parsimony principle",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the parsimony principle",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The hypothesis that the phylogeny which includes the fewest character changes is the one most likely to be correct."
      ],
      "id": "en-parsimony_principle-en-name-7zWqI3f0",
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "hypothesis",
          "hypothesis"
        ],
        [
          "phylogeny",
          "phylogeny"
        ],
        [
          "character",
          "character"
        ]
      ],
      "qualifier": "evolutionary biology",
      "raw_glosses": [
        "(evolutionary biology) The hypothesis that the phylogeny which includes the fewest character changes is the one most likely to be correct."
      ]
    }
  ],
  "word": "parsimony principle"
}

{
  "forms": [
    {
      "form": "the parsimony principle",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the parsimony principle",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "en:Biology"
      ],
      "glosses": [
        "The hypothesis that the phylogeny which includes the fewest character changes is the one most likely to be correct."
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "hypothesis",
          "hypothesis"
        ],
        [
          "phylogeny",
          "phylogeny"
        ],
        [
          "character",
          "character"
        ]
      ],
      "qualifier": "evolutionary biology",
      "raw_glosses": [
        "(evolutionary biology) The hypothesis that the phylogeny which includes the fewest character changes is the one most likely to be correct."
      ]
    }
  ],
  "word": "parsimony principle"
}