"Ewald tube" meaning in English

{
  "etymology_text": "Named after the German gastroenterologist Carl Anton Ewald.",
  "forms": [
    {
      "form": "Ewald tubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Ewald tube (plural Ewald tubes)",
      "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"
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          "source": "w"
        }
      ],
      "glosses": [
        "An orogastric tube used to pump the stomach."
      ],
      "id": "en-Ewald_tube-en-noun-K5cTbUv0",
      "links": [
        [
          "orogastric",
          "orogastric"
        ],
        [
          "tube",
          "tube"
        ],
        [
          "pump",
          "pump"
        ],
        [
          "stomach",
          "stomach"
        ]
      ],
      "wikipedia": [
        "Carl Anton Ewald",
        "Ewald tube"
      ]
    }
  ],
  "word": "Ewald tube"
}

{
  "etymology_text": "Named after the German gastroenterologist Carl Anton Ewald.",
  "forms": [
    {
      "form": "Ewald tubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Ewald tube (plural Ewald tubes)",
      "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 orogastric tube used to pump the stomach."
      ],
      "links": [
        [
          "orogastric",
          "orogastric"
        ],
        [
          "tube",
          "tube"
        ],
        [
          "pump",
          "pump"
        ],
        [
          "stomach",
          "stomach"
        ]
      ],
      "wikipedia": [
        "Carl Anton Ewald",
        "Ewald tube"
      ]
    }
  ],
  "word": "Ewald tube"
}