Pb
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Pb
The symbol for lead.
[From Latin plumbum, lead.]
PB
abbr.
1. paperback
2. petabyte
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Pb
the chemical symbol for
(Elements & Compounds) lead
[from New Latin plumbum]
PB
abbreviation for
1. (Pharmacology) Pharmacopoeia Britannica
2. (Ecclesiastical Terms) Prayer Book
3. (Athletics (Track & Field)) athletics personal best
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Pb
Chem. Symbol. lead.
[< Latin plumbum]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Pb
The symbol for lead.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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| Noun | 1. |  Pb - a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey; "the children were playing with lead soldiers"metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. cerussite, white lead ore - a mineral consisting of lead carbonate that is an important source of lead galena - soft blue-grey mineral; lead sulfide; a major source of lead hard lead - unrefined lead that is hard because of the impurities it contains antimonial lead, hard lead - a lead alloy that contains about 5% antimony pig lead - lead that is cast in pigs |
| 2. | Pb - a unit of information equal to 1000 terabits or 10^15 bits computer memory unit - a unit for measuring computer memory | |
| 3. | PB - a unit of information equal to 1000 terabytes or 10^15 bytes computer memory unit - a unit for measuring computer memory | |
| 4. | PB - a unit of information equal to 1024 tebibytes or 2^50 bytes computer memory unit - a unit for measuring computer memory |
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