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scyphozoan
scythe
Scythia
Scythian
SD
sd
SDA
SDB
SDI
SDLP
SDP
SDR
SDRAM
SDS
SE
Se
se
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SDI
SDI or S.D.I.


abbr 
Definition:
 
military politics Strategic Defense Initiative
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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