Judaism is the religion of the Jewish people. It is based on the Old Testament of the Bible and the Talmud.
Judaism in British English
(ˈdʒuːdeɪˌɪzəm)
noun
1.
the religion of the Jews, based on the Old Testament and the Talmud and having as its central point a belief in the one God as transcendent creator of all things and the source of all righteousness
2.
the religious and cultural traditions, customs, attitudes, and way of life of the Jews
Derived forms
Judaistic (ˌJudaˈistic)
adjective
Judaism in American English
(ˈdʒudeɪˌɪzəm; ˈdʒudiˌɪzəm; ˈdʒudəˌɪzəm)
noun
1.
the Jewish religion, a monotheistic religion based on the laws and teachings of the Holy Scripture and the Talmud
2.
the Jewish way of life; observance of Jewish morality, traditions, ceremonies, etc.
3.
Jews collectively; Jewry
Derived forms
Judaist (ˈJudaist)
noun
Judaistic (ˌJudaˈistic)
adjective
Word origin
ME Judaisme < LL(Ec) Judaismus < Gr(Ec) Ioudaismos < Ioudaios: see Jew