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retrolental
retronym
retropack
retroposon
retropulsion
retrorocket
retrorse
retrospect
retrospective
retrosynthetic
retrotransposon
retroussé
retroversion
retrovirus
retry
retsina
Rett syndrome
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retrofire
ret·ro·fire [ réttrō fr ] (past and past participle ret·ro·fired, present participle ret·ro·fir·ing, 3rd person present singular ret·ro·fires)


transitive and intransitive verb 
Definition:
 
ignite retrorocket: to fire a retrorocket in order to decelerate, or be fired to cause deceleration
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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