Pronunciation: (kun-tān'munt), [key]
1. the act or condition of containing.
2. an act or policy of restricting the territorial growth or ideological influence of another, esp. a hostile nation.
3. (in a nuclear power plant) an enclosure completely surrounding a nuclear reactor, designed to prevent the release of radioactive material in the event of an accident.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.