LL.B., LL.M. or LL.D. Definition: Abbreviations for law degrees as in bachelor of law, master or law, or doctorate. Related Terms: J. D. The Latin abbreviations for the three classes of law degrees: the regular bachelor degree in law (LL.B.), thebasic prerequisite to admission to the practice of law in many states; the masters degree in law (LL.M.), the basic prerequisite to teach law at a law school; and the doctorate in law (LL.D.). Find you are constantly looking up definitions? Try our search provider (works in most modern browsers) If you find an error or omission in Duhaime's Legal Dictionary, or if you have legal term suggestion, we'd love to hear from you!