One of four major denominations/movements of religious Judaism: Orthodox, Conservative, Reform and Reconstructionist. Orthodox Jews adhere to a relatively strict interpretation and application of Jewish religious law, both written and oral. See “Orthodox Judaism.” Jewish Virtual Library. 18 July 2011. http://www.jewishvirtuallibrary.org/jsource/Judaism/Orthodox.html.  http://www.justvision.org/glossary/orthodox-judaism