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supercritical
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supergrass
su·per·grass [ spər gràss ] (plural su·per·grasses)


noun 
Definition:
 
U.K. police informer: somebody who gives information to the police or security forces implicating a large number of criminals or terrorists ( informal )

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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