Pronunciation: (pa-siv'i-tē), [key]
1. Also,pas•sive•nessPronunciation: (pas'iv-nis). [key]the state or condition of being passive.
2. chemical inactivity, esp. the resistance to corrosion of certain metals when covered with a coherent oxide layer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.