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de Broglie wavelength
de-emphasize
de-energize
de-escalate
de facto
de facto corporation
de jure
de jure control
de jure corporation
De Kalb
de la
de nos jours
de novo
de profundis
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deactivate
de·ac·ti·vate [ dee ákti vàyt ] (past and past participle de·ac·ti·vat·ed, present participle de·ac·ti·vat·ing, 3rd person present singular de·ac·ti·vates)


transitive verb 
Definition:
 
1. make something inactive: to prevent something that is active or live, especially an explosive device, from operating
2. stop active compound from working: to render a biologically active compound such as an enzyme inactive or ineffective
3. end active military status: to make a military unit no longer active

de·ac·ti·va·tion [ dee àkti váysh'n ] noun
de·ac·ti·va·tor [ dee ákti vàytər ] noun
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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