tätadense

Could you clarify what tätadense refers to? Is it a real term from a specific field (for example linguistics, urban studies, biology), or a fictional/neologistic concept you’d like described? If it’s real, please specify the domain and any context I should include. If it’s fictional, should I treat it as a hypothetical concept and provide a concise wiki-style entry with neutral tone? Also, would you like the article in English or Swedish?