"memory span" meaning in All languages combined

{
  "forms": [
    {
      "form": "memory spans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "memory span (plural memory spans)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "He noticed that the memory span of young adults was around seven elements",
          "type": "example"
        }
      ],
      "glosses": [
        "The number of items, usually words or numbers, that a person can retain and recall. Memory span is a test of working memory (short-term memory)."
      ],
      "id": "en-memory_span-en-noun-vJdOLA4u",
      "links": [
        [
          "number",
          "number"
        ],
        [
          "items",
          "items"
        ],
        [
          "retain",
          "retain"
        ],
        [
          "recall",
          "recall"
        ],
        [
          "test",
          "test"
        ],
        [
          "memory",
          "memory"
        ]
      ]
    }
  ],
  "word": "memory span"
}

{
  "forms": [
    {
      "form": "memory spans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "memory span (plural memory spans)",
      "name": "en-noun"
    }
  ],
  "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",
        "English terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "He noticed that the memory span of young adults was around seven elements",
          "type": "example"
        }
      ],
      "glosses": [
        "The number of items, usually words or numbers, that a person can retain and recall. Memory span is a test of working memory (short-term memory)."
      ],
      "links": [
        [
          "number",
          "number"
        ],
        [
          "items",
          "items"
        ],
        [
          "retain",
          "retain"
        ],
        [
          "recall",
          "recall"
        ],
        [
          "test",
          "test"
        ],
        [
          "memory",
          "memory"
        ]
      ]
    }
  ],
  "word": "memory span"
}