un sputtering

sputtering

[spuht-er-ing]
noun
Engineering, Electronics. a process that uses ions of an inert gas to dislodge atoms from the surface of a crystalline material, the atoms then being electrically deposited to form an extremely thin coating on a glass, metal, plastic, or other surface.

Origin:
1900–05; sputter + -ing1

unsputtering, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Etymonline
Word Origin & History

sputter
1598, "to spit with explosive sounds," cognate with Du. sputteren, W.Fris. sputterje (see spout). The noun is attested from 1673.
Online Etymology Dictionary, © 2010 Douglas Harper
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