shielding

noun

shield·ing | \ ˈshēl-diŋ

plural shieldings

Definition of shielding

: something that shields or protects Options include a night-vision camera, under-body blast shielding to help protect against land mines and bombs, as well as radiation detection devices.— Chantal Eustace It sounds impressive, but the only difference between multimedia speakers and plain old loudspeakers is magnetic shielding to protect your monitor.— Jonathan Karl Matzkin especially : a device or screen that protects against harmful radiation The radioactive metals must be treated behind heavy shielding by remote control … — Leon Svirsky This capsule was sealed in a tungsten wheel the size of a tricycle tire, which was then placed behind thick lead shielding. Radiation emitted through a pinhole in the lead was used to treat patients with localized cancers. — Sandra Blakeslee