üleszköz

Could you clarify what you mean by "üleszköz"? It's not a widely used term in English, and its exact meaning depends on language and context. Please provide:

- The language (Hungarian, Estonian, or another language) and the intended meaning of the word

- The field or domain (e.g., furniture, medical equipment, robotics, software, etc.)

- Any source or context you want the article to reflect

Once I have that, I’ll write a concise, neutral wiki-style article under 300 words.