dongle

English Thesaurus

1. (computer science) an electronic device that must be attached to a computer in order for it to use protected software (noun.artifact)

hypernym	:	electronic device,
definition	:	a device that accomplishes its purpose electronically (noun.artifact)

domain category	:	computer science, computing,
definition	:	the branch of engineering science that studies (with the aid of computers) computable processes and structures (noun.cognition)