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opossum shrimp
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opposition research
op·pos·i·tion re·search


noun 
Definition:
 
U.S. research for damaging information: research done in order to discover damaging or detrimental information about somebody
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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