English

Noun

passivation ‎(countable and uncountable, plural passivations)

1. (chemistry, materials science) The process of making a material passive (non-reactive) in relation to another material prior to using the materials together.
2. (chemistry) The spontaneous formation of a hard non-reactive surface film (usually an oxide or nitride) that inhibits further corrosion.
3. (control theory) Conversion of a non-passive dynamical system into a passive one.

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