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rapier
rapine
rapini
rapist
rappa
Rappahannock
rappel
rappel bolting
rappen
rapper
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rare gas
rare gas


noun 
Definition:
 
chemistry 
Same as  noble gas
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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