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Definition of passivation - 1 dictionary result
pas·si·vate   (pās'ə-vāt')   
v.   pas·si·vat·ed, pas·si·vat·ing, pas·si·vates

v.   tr.
  1. To treat or coat (a metal) in order to reduce the chemical reactivity of its surface.
  2. To coat (a semiconductor, for example) with an oxide layer to protect against contamination and increase electrical stability.
pas'si·va'tion n., pas'si·va·tor n.
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