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orthodox
/ˈɔːθədɒks/ adjective Definition
RELIGION
› keeping the traditional beliefs and customs of Judaism or some types of Christianity:
an orthodox Jewish family
the Russian/Greek Orthodox Church
IDEA
› If ideas or methods are orthodox, most people think they are correct, usually because they have existed for a long time:
orthodox medicine→ Opposite unorthodox
(Definition of orthodox adjective from the Cambridge Learner's Dictionary © Cambridge University Press)
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