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rightmost
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rights issue
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rigid
rigid designator
rigid inflatable boat
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rille
rille [ ríllə ] (plural rilles)


noun 
Definition:
 
trench on Moon: a long narrow valley on the Moon's surface
[Mid-19th century. < German, "groove" (see rill)]
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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