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leptomeningeal
leptomeningitis
lepton
leptosome
leptospirosis
leptosporangiate
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lessen
less·en [ léss'n ] (past and past participle less·ened, present participle less·en·ing, 3rd person present singular less·ens)


transitive and intransitive verb 
Definition:
 
reduce: to make something less, or become less
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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