judaism Meaning, Definition & Usage

  1. noun Jews collectively who practice a religion based on the Torah and the Talmud
    Hebraism; Jewish religion.
  2. noun the monotheistic religion of the Jews having its spiritual and ethical principles embodied chiefly in the Torah and in the Talmud

WordNet

Ju"da*ism noun
Etymology
L. Judaïsmus: cf. F. judaïsme.
Definitions
  1. The religious doctrines and rites of the Jews as enjoined in the laws of Moses. J. S. Mill.
  2. Conformity to the Jewish rites and ceremonies.

Webster 1913