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retroflexion
retrograde
retrogress
retrogression
retrolental
retronym
retropack
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retroactive
ret·ro·ac·tive [ rèttrō áktiv ]


adjective 
Definition:
 
applying to past: relating or applying to things that have happened in the past as well as the present
retroactive pay increases

ret·ro·ac·tive·ly adverb
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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