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Shielding

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.03 sec.
shielding [′shēld·iŋ]
(electromagnetism)
electric shielding
(metallurgy)
Placing a nonconducting object in an electrolytic bath during plating to alter the current distribution.
(nucleonics)
Reducing the ionizing radiation reaching one region of space from another region by using a shield or other device.
shield
Shielding 

(also screening), in electrical engineering and radio engineering, a means of reducing—that is, of suppressing or substantially attenuating—the effect of external stray fields, noise, or pickup. Such phenomena interfere with the operation of, for example, electrical or radio equipment, data transmission equipment, and data-processing equipment.

Shielding is accomplished by means of a grounded metal or metal-plated shield with a high electrical or magnetic conductivity. Either the stray-field or noise source or the equipment or component to be shielded is enclosed in the shield. Depending on the extent of shielding required, either solid shields or screens are used. Solid shields are usually made of sheet steel; screens are woven from copper or steel wire.

In many cases, the metal housing of a device acts as a shield. Complicated or bulky equipment is often installed in a room or chamber that is shielded.
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When Denisov had come to Pokrovsk at the beginning of his operations and had as usual summoned the village elder and asked him what he knew about the French, the elder, as though shielding himself, had replied, as all village elders did, that he had neither seen nor heard anything of them.
War and Peace by Tolstoy, Leo View in context
His back was bowed up, the very opposite muscular position to that for a spring, while he drew his head more and more down and under his chest in utter abjectness, resting his weight on his elbows and shielding his poor nose with his massive paws, a single stroke of which could have ripped the life of Collins quivering from his body.
Michael, Brother of Jerry by London, Jack View in context
Another thing I saw, too, which almost lost my life for me then and there, for it took my mind for the fraction of an instant entirely from my antagonist; for, as Dejah Thoris struck the tiny mirror from her hand, Sarkoja, her face livid with hatred and baffled rage, whipped out her dagger and aimed a terrific blow at Dejah Thoris; and then Sola, our dear and faithful Sola, sprang between them; the last I saw was the great knife descending upon her shielding breast.
A Princess of Mars by Burroughs, Edgar Rice View in context
 
 
 
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