Transfiguratien

n. [ L. transfiguratio: cf. transfiguration. ] 1. A change of form or appearance; especially, the supernatural change in the personal appearance of our Savior on the mount. [ 1913 Webster ]

2. (Eccl.) A feast held by some branches of the Christian church on the 6th of August, in commemoration of the miraculous change above mentioned. [ 1913 Webster ]