What is what does orthodox mean?

Orthodox means conforming to established beliefs and practices, especially in religion. It often refers to the adherence to traditional doctrine and practices in Christianity, Judaism, and Islam. In Christianity specifically, the term orthodox refers to the teachings and practices of the Eastern Orthodox Church, which split from the Western Roman Catholic Church in the Great Schism of 1054. In general, orthodox beliefs and practices are considered to be a cornerstone of a particular faith or denomination, and are upheld as a way of preserving the authenticity and integrity of that faith.