"Kleene plus" meaning in English

{
  "etymology_text": "After Stephen Cole Kleene (1909-1994), American mathematician.",
  "forms": [
    {
      "form": "Kleene pluses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Kleene plus (plural Kleene pluses)",
      "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Logic",
          "orig": "en:Logic",
          "parents": [
            "Formal sciences",
            "Philosophy",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Regular expressions",
          "orig": "en:Regular expressions",
          "parents": [
            "Computing",
            "Programming",
            "Technology",
            "Software engineering",
            "All topics",
            "Computer science",
            "Engineering",
            "Software",
            "Fundamental",
            "Sciences",
            "Applied sciences",
            "Media",
            "Communication"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Theory of computing",
          "orig": "en:Theory of computing",
          "parents": [
            "Computer science",
            "Computing",
            "Sciences",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: Kleene star"
        }
      ],
      "glosses": [
        "The plus symbol, +, used as an operator to concatenate one or more strings from a given set, widely used in regular expressions."
      ],
      "id": "en-Kleene_plus-en-noun-ZyD3xSKB",
      "links": [
        [
          "logic",
          "logic"
        ],
        [
          "computing",
          "computing#Noun"
        ],
        [
          "theory",
          "theory"
        ],
        [
          "plus",
          "plus"
        ],
        [
          "+",
          "+"
        ],
        [
          "operator",
          "operator"
        ],
        [
          "concatenate",
          "concatenate"
        ],
        [
          "set",
          "set"
        ],
        [
          "regular expression",
          "regular expression"
        ]
      ],
      "raw_glosses": [
        "(logic, computing theory) The plus symbol, +, used as an operator to concatenate one or more strings from a given set, widely used in regular expressions."
      ],
      "topics": [
        "computing",
        "computing-theory",
        "engineering",
        "human-sciences",
        "logic",
        "mathematics",
        "natural-sciences",
        "philosophy",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "Stephen Cole Kleene"
      ]
    }
  ],
  "word": "Kleene plus"
}

{
  "etymology_text": "After Stephen Cole Kleene (1909-1994), American mathematician.",
  "forms": [
    {
      "form": "Kleene pluses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Kleene plus (plural Kleene pluses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Logic",
        "en:Regular expressions",
        "en:Theory of computing"
      ],
      "examples": [
        {
          "text": "Coordinate term: Kleene star"
        }
      ],
      "glosses": [
        "The plus symbol, +, used as an operator to concatenate one or more strings from a given set, widely used in regular expressions."
      ],
      "links": [
        [
          "logic",
          "logic"
        ],
        [
          "computing",
          "computing#Noun"
        ],
        [
          "theory",
          "theory"
        ],
        [
          "plus",
          "plus"
        ],
        [
          "+",
          "+"
        ],
        [
          "operator",
          "operator"
        ],
        [
          "concatenate",
          "concatenate"
        ],
        [
          "set",
          "set"
        ],
        [
          "regular expression",
          "regular expression"
        ]
      ],
      "raw_glosses": [
        "(logic, computing theory) The plus symbol, +, used as an operator to concatenate one or more strings from a given set, widely used in regular expressions."
      ],
      "topics": [
        "computing",
        "computing-theory",
        "engineering",
        "human-sciences",
        "logic",
        "mathematics",
        "natural-sciences",
        "philosophy",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "Stephen Cole Kleene"
      ]
    }
  ],
  "word": "Kleene plus"
}