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lumpectomy
lumpen
lumpenproletariat
lumper
lumpfish
lumpish
lumpsucker
lumpy
lumpy jaw
Lumumbist
Luna
luna moth
lunacy
lunar
lunar caustic
lunar cycle
lunar eclipse
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luminous energy
lu·mi·nous en·er·gy


noun 
Definition:
 
total amount of light given off: the total amount of light emitted by a source.
Symbol  QV
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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