The Collaborative International Dictionary
Polarizer \Po"lar*i`zer\, n. (Physics) 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.
Wiktionary
n. 1 One who polarizes. 2 (context physics English) Any device that produces polarized light
Wikipedia
A polarizer or polariser is an optical filter that lets light of a specific polarization pass and blocks waves of other polarizations. It can convert a beam of light of undefined or mixed polarization into a beam of well-defined polarization, that is polarized light. The common types of polarizers are linear polarizers and circular polarizers. Polarizers are used in many optical techniques and instruments, and polarizing filters find applications in photography and liquid crystal display technology. Polarizers can also be made for other types of electromagnetic waves besides light, such as radio waves, microwaves, and X-rays.
Usage examples of "polarizer".
Only with the help of ampere meters and polarizers did they discover that the growth on the slopes was causing the fluctuation of the magnetic field.
Besides an air and water recycler, life support included a gravity polarizer.
He went right between the tails and fell off into space, spinning wildly with the polarizer still on full thrust.
The basic drive was to the kzinti gravity polarizer as a fusion bomb was to a grenade—.
Locklear could see no interconnects between the stasis generator and the polarizer, but both were detachable.
One of his jury-rigs, outside the cave, was a catapult using a polarizer on a sturdy frame.
I suspect that the builders of this zoo planet have buried gravity polarizers with the force cylinder generators.
He could scavenge enough steel for lances, more of the polarizers to build a whopping big airsloop, maybe even— He sat up, startling her.
Perhaps a series of the gravity polarizers would make a kind of mass driver—a true space drive!
Their cage tops would each make a dandy greenhouse and their grav polarizers would lift tons.
The predators would simply have to wait until the herds were larger, and the day was over before he could rig grav polarizers to trundle mammoths to the mouth of the crypt.
That was the day he began teaching the girl how to disassemble cages for their most potent parts, the grav polarizers and stasis units.
Instead of polarizers, we might bury some stasis units outside, perhaps at the entrance to their meeting hut.
Put a bunch of polarizers on it to push yourself around and ignored the sail, didn't you?
Gravity polarizers were a wonderful invention, and he was very glad humans had mastered them, but they were nerve-wracking.