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decommission

[dee-kuh-mish-uh n] /ˌdi kəˈmɪʃ ən/
verb (used with object)
1.
to remove or retire (a ship, airplane, etc.) from active service.
2.
to deactivate; shut down:
to decommission a nuclear power plant.
Origin
1925-1930
1925-30; de- + commission
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for de commission

decommission

/ˌdiːkəˈmɪʃən/
verb
1.
(transitive) to dismantle or remove from service (a nuclear reactor, weapon, ship, etc which is no longer required)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for de commission

decommission

v.

1922, originally with reference to warships, from de- + commission (v.). Related: Decommissioned; decommissioning.

Online Etymology Dictionary, © 2010 Douglas Harper
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