ɐ lˈaɪv jˌuːˌɛsbˈiː ɪz ɐ pˈoːɹɾəbəl jˌuːˌɛsbˈiːɐtˈætʃt ɛkstˈɜːnəl dˈeɪɾə stˈoːɹɪdʒ dɪvˈaɪs kəntˈeɪnɪŋ ɐ fˈʊl ˈɑːpɚɹˌeɪɾɪŋ sˈɪstəm ðæt kæn biː bˈuːɾᵻd fɹʌm.
A live USB is a portable USB-attached external data storage device containing a full operating system that can be booted from.