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annuity in arrears
annul
annular
annular eclipse
annular ligament
annulate
annulation
annulet
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Annunciation
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annus mirabilis
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annual parallax
an·nu·al par·al·lax


noun 
Definition:
 
astronomy 
Same as  heliocentric parallax
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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