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cumber
Cumberland
Cumberland Falls
Cumberland Gap
Cumberland sausage
Cumbernauld
cumbersome
cumbia
Cumbria
cumbrous
cume
cumene
cumin
cummerbund
cummin
cumquat
cumulate
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cumulonimbus
cu·mu·lo·nim·bus [ kymyəlō nímbəss ] (plural cu·mu·lo·nim·bi [ kymyəlō ním b ] or cu·mu·lo·nim·bus·es)


noun 
Definition:
 
thunder cloud: a tall dark cumulus cloud in the shape of an anvil, often bringing thunderstorms
[Late 19th century. <cumulus]
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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