"Pavlov pouch" meaning in English

{
  "etymology_text": "Named after Ivan Pavlov, Russian physiologist.",
  "forms": [
    {
      "form": "Pavlov pouches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Pavlov pouch (plural Pavlov pouches)",
      "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"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
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          "source": "w"
        }
      ],
      "glosses": [
        "An exteriorized section of the stomach, used in studying digestion."
      ],
      "id": "en-Pavlov_pouch-en-noun-8S5NVxmh",
      "links": [
        [
          "exteriorize",
          "exteriorize"
        ],
        [
          "section",
          "section"
        ],
        [
          "stomach",
          "stomach"
        ],
        [
          "digestion",
          "digestion"
        ]
      ],
      "wikipedia": [
        "Ivan Pavlov"
      ]
    }
  ],
  "word": "Pavlov pouch"
}

{
  "etymology_text": "Named after Ivan Pavlov, Russian physiologist.",
  "forms": [
    {
      "form": "Pavlov pouches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Pavlov pouch (plural Pavlov pouches)",
      "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"
      ],
      "glosses": [
        "An exteriorized section of the stomach, used in studying digestion."
      ],
      "links": [
        [
          "exteriorize",
          "exteriorize"
        ],
        [
          "section",
          "section"
        ],
        [
          "stomach",
          "stomach"
        ],
        [
          "digestion",
          "digestion"
        ]
      ],
      "wikipedia": [
        "Ivan Pavlov"
      ]
    }
  ],
  "word": "Pavlov pouch"
}