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b.y.

 - 2 dictionary results
By
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b.y.  
abbr.  billion years
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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By
Get info on By families worldwide, for free
www.myheritage.com
Abbreviations & Acronyms
b.y.
billion years
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Search another word or see b.y. on Thesaurus | Reference
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