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Rubik’s cube
ruble
RuBP
rubric
rubricate
rubrician
ruby
ruby port
ruby spinel
ruby-throated hummingbird
ruby wedding
RUC
ruche
ruching
ruck (1)
ruck (2)
rucksack
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ruby spinel
ru·by spi·nel


noun 
Definition:
 
red variety of mineral spinel: a red transparent form of the mineral spinel. Use: jewelry.
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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