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annihilation
Anniston
anniversary
anno Domini
anno Hegirae
annotate
annotation
announce
announcement
announcement date
announcer
annoy
annoyance
annoybot
annoying
annual
annual debt service
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annual ring
an·nu·al ring (plural an·nu·al rings)


noun 
Definition:
 
trees 
Same as  growth ring
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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