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centavo
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centenarian
centenary
centennial
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center
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center bit
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center bit
cen·ter bit (plural cen·ter bits)


noun 
Definition:
 
drill bit with central projection: a drill attachment or tool for boring or cutting that has a pointed projection in the middle and cutters at the sides
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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