n. pl. phy·lac·ter·ies
Either of two small leather boxes, each containing strips of parchment inscribed with quotations from the Hebrew Scriptures, traditionally worn strapped to the forehead and the left arm by Jewish men during morning worship, except on the Sabbath and holidays.
[Middle English filaterie, philacterie, from Old French filatiere, from Late Latin phylactērium, from Greek phulaktērion, guard's post, safeguard, phylactery, from phulaktēr, guard, from phulax, phulak-.]
(click for a larger image)phylactery
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