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blue jeans
blue john
blue law
blue line
Blue Mantle
blue moon
Blue Mountains
blue murder
Blue Nile
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blue-green algae
blue-green al·gae


plural noun 
Definition:
 
biology 
Same as  cyanobacteria
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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