"sliding filament model" meaning in English

{
  "forms": [
    {
      "form": "sliding filament models",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "sliding filament model (plural sliding filament models)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "A theory relating to a series of actions by the actin and myosin filaments that enable the muscle to undergo contraction."
      ],
      "id": "en-sliding_filament_model-en-noun-k9QuN4Gr",
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "actin",
          "actin"
        ],
        [
          "myosin",
          "myosin"
        ],
        [
          "muscle",
          "muscle"
        ]
      ],
      "raw_glosses": [
        "(biology) A theory relating to a series of actions by the actin and myosin filaments that enable the muscle to undergo contraction."
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ],
      "wikipedia": [
        "sliding filament model"
      ]
    }
  ],
  "word": "sliding filament model"
}

{
  "forms": [
    {
      "form": "sliding filament models",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sliding filament model (plural sliding filament models)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Biology"
      ],
      "glosses": [
        "A theory relating to a series of actions by the actin and myosin filaments that enable the muscle to undergo contraction."
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "actin",
          "actin"
        ],
        [
          "myosin",
          "myosin"
        ],
        [
          "muscle",
          "muscle"
        ]
      ],
      "raw_glosses": [
        "(biology) A theory relating to a series of actions by the actin and myosin filaments that enable the muscle to undergo contraction."
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ],
      "wikipedia": [
        "sliding filament model"
      ]
    }
  ],
  "word": "sliding filament model"
}