Phylactery

fi-lak'ter-T, n. Any charm or spell worn as a preservative from danger or disease. (Jewish Antiq.) A slip of parchment on which were written certain pa ages of the Pent a teuch; worn Dy devout persons on the forehead and left arm while at prayer. [Gr. phulakterion, a Phylacteries preservative, amulet, phulactei\ phulax, a watchman, phula ein, to guard.]