WordNet (r) 3.0 (2006):

amora
    n 1: one of a group of rabbis (active AD 250-500) who discussed
         the Mishnaic law in the law schools of Palestine and
         Mesopotamia where they explained and applied earlier
         teachings and whose discussions are recorded in the Talmud;
         they emphasized the study of Torah and the importance of
         personal action and the fulfillment of the commandments