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Symbol, Chemistry.
1. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Pu
Contemporary Examples
Historical Examples
  • Eh, gien they wad but stick i' my shune, and gang wi' them whan I Pu' them aff!

    Heather and Snow George MacDonald
  • He'd 'a' gaen into a pit, gin there'd been ane, an' Pu'd it in ahind 'im.

    Greyfriars Bobby Eleanor Atkinson
  • "We'll Pu' the wool ower the auld wifie's een," he chuckled.

    Greyfriars Bobby Eleanor Atkinson
  • She canna bide to be contred an' Pu'd this gait and that gait.

    Robert Falconer George MacDonald
  • Stewart, ye red-heided deevil, are ye goin' to Pu' me oot, or are ye no?

    In Search of El Dorado Alexander MacDonald
British Dictionary definitions for Pu


Chemical symbol
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Pu in Medicine

The symbol for the element plutonium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Pu in Science
The symbol for plutonium.
Symbol Pu
A silvery, radioactive metallic element of the actinide series that has the highest atomic number of all naturally occurring elements. It is found in minute amounts in uranium ores and is produced artificially by bombarding uranium with neutrons. It is absorbed by bone marrow and is highly poisonous. Plutonium is used in nuclear weapons and as a fuel in nuclear reactors. Its longest-lived isotope is Pu 244 with a half-life of 76 million years. Atomic number 94; melting point 640°C; boiling point 3,232°C; specific gravity 19.84; valence 3, 4, 5, 6. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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