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rhyton
RI
RIA
rial
rialto
riata
rib
rib cage
rib eye
rib roast
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ribbon worm
rib·bon worm (plural rib·bon worms)


noun 
Definition:
 
burrowing ocean worm: a worm with a long flat unsegmented body that burrows in the mud covered by ocean tides. Phylum Nemertea.
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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