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R.C.P.
R.C.S.
r-color
R & D
R/D
R.E.
r.f.
R factor
r.h.
R.I.B.
R.I.P.
r.m.m.
R’n’B
R.N.C.
R.Q.
R.S.V.P.
r.v.
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r.h.
r.h.


abbr 
Definition:
 
1. meteorology relative humidity
2. right hand
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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