Polarizer
Pronunciation : Po"lar*i`zer
Part of Speech : n.
Definition : Defn: That which polarizes; especially, the part of a polariscope which receives and polarizes the light. It is usually a reflecting plate, or a plate of some crystal, as tourmaline, or a doubly refracting crystal.
(Physics)
Source : Webster's Unabridged Dictionary, 1913