containment

[ kuhn-teyn-muhnt ]
/ kənˈteɪn mənt /

noun

the act or condition of containing.
an act or policy of restricting the territorial growth or ideological influence of another, especially a hostile nation.
an act or policy of limiting the expansion or spread of a natural disaster, contagious disease, or other dangerous thing: Containment of the wildfire reached nearly 40% before powerful winds carried embers over the perimeter, reducing containment.Local farmers notified authorities of sick and dying birds more quickly than the previous year, ensuring quick containment of infection on the farm.
(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.

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Origin of containment

First recorded in 1645–55; contain + -ment
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for containment

British Dictionary definitions for containment

containment
/ (kənˈteɪnmənt) /

noun

the act or condition of containing, esp of restraining the ideological or political power of a hostile country or the operations of a hostile military force
(from 1947 to the mid-1970s) a principle of US foreign policy that sought to prevent the expansion of Communist power
Also called: confinement physics the process of preventing the plasma in a controlled thermonuclear reactor from reaching the walls of the reaction vessel, usually by confining it within a configuration of magnetic fieldsSee magnetic bottle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for containment

containment

A policy aimed at controlling the spread of communism around the world, developed in the administration of President Harry S. Truman. The formation of the North Atlantic Treaty Organization (NATO) in 1949 was an important step in the development of containment.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.