|rē+ noun
Etymology: reconstruction + -ism
: adherence to or advocacy of reconstruction ; specifically often capitalized : a movement in 20th century American Judaism influenced by Conservative Judaism and by pragmatism that advocates a creative adjustment of Jewish life to contemporary conditions by stressing the cultivation of traditions and folkways shared by all Jews as a basis for reconstructing historic Judaism into a religious civilization that would transcend denominationalism and ensure the unity and survival of the Jewish people