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RV
rw
Rwanda (1)
Rwanda (2)
RWD
rwy.
Rx
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rutherfordium
ruth·er·ford·i·um [ rùər fáwrdee əm ]


noun 
Definition:
 
chemical element: a radioactive element. Source: produced artificially in high-energy atomic collisions.
Symbol  Rf
[Mid-20th century. After Ernest Rutherford]
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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