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dottrel
dotty
dou-dou
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Douala
Douay Bible
double
double act
double-acting
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double bond
dou·ble bond (plural dou·ble bonds)


noun 
Definition:
 
covalent bond: a chemical bond in which two atoms share two pairs of electrons
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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