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raptorial
rapture
rapture of the deep
rara avis
rare (1)
rare (2)
rare earth
rare-earth element
rare gas
rarebit
raree show
rarefaction
rarefied
rarefy
raregroove
rarely
rareripe
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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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