P.P.B.

PPB

(in publishing) paper, printing, and binding.
Also, P.P.B.
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American Heritage
Medical Dictionary

ppb abbr.
parts per billion

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Abbreviations & Acronyms
ppb
parts per billion
PPB
paper, printing, and binding
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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