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avitaminosis
Aviv
AVM
avo
avocado
avocation
avocet
Avogadro’s constant
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avoidant personality disorder
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avidin
av·i·din [ ávvədin ]


noun 
Definition:
 
protein found in egg white: a protein found in egg white that inactivates the vitamin biotin
[Mid-20th century. <avid, because of its "avidity" for biotin]
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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