"paratopological group" meaning in English

{
  "forms": [
    {
      "form": "paratopological groups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "paratopological group (plural paratopological groups)",
      "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",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
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            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "A topological semigroup that is algebraically a group."
      ],
      "id": "en-paratopological_group-en-noun-WUWxAi5e",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "topological semigroup",
          "topological semigroup#English"
        ],
        [
          "algebraically",
          "algebraically#English"
        ],
        [
          "group",
          "group#English"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A topological semigroup that is algebraically a group."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "paratopological group"
}

{
  "forms": [
    {
      "form": "paratopological groups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "paratopological group (plural paratopological groups)",
      "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",
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      ],
      "glosses": [
        "A topological semigroup that is algebraically a group."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "topological semigroup",
          "topological semigroup#English"
        ],
        [
          "algebraically",
          "algebraically#English"
        ],
        [
          "group",
          "group#English"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A topological semigroup that is algebraically a group."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "paratopological group"
}