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defensin
defensive
defensive back
defensive medicine
defensive security
defensive zone
defensively
defer (1)
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deference
deferent (1)
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deferential
deferred annuity
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defibrillator
de·fib·ril·la·tor [ dee fíbbrə làytər, dee fbrə làytər ] (plural de·fib·ril·la·tors)


noun 
Definition:
 
electric-shock machine: a machine that administers a controlled electric shock to the chest or heart to correct a critically irregular heartbeat that cannot drive the circulation
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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