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nonagenarian
nonaggression
nonagon
nonair commercial
nonaligned
nonanoic acid
nonappearance
nonarrival
nonassessable
nonbank
nonblack
nonbook
nonbusiness
noncallable
noncarbonate
noncash expense
nonce
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non-REM sleep
non-REM sleep


noun 
Definition:
 
biology 
Same as  slow-wave sleep
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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