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Lexeme: persistent unique device identifier  
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Definition:
  1. noun. A persistent unique device identifier (UDID) is a string of alphanumeric characters assigned to a device to uniquely identify it within a specific context or system. It is usually assigned by the device manufacturer and remains constant on the device throughout its lifetime, even if the device is reset or restored to factory settings. This identifier is commonly used for various purposes such as tracking, authentication, and security in mobile devices and IoT (Internet of Things) devices. GPT3.5
Word Forms:
  • noun. persistent unique device identifier (singular), persistent unique device identifiers (plural)
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