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Avogadro's number

noun, Chemistry
1.
the constant, 6.022 × 10 23 , representing the number of atoms, molecules, or ions in one mole of a substance. Symbol: N.
Also called Avogadro constant.
Origin
1925-1930
1925-30; see Avogadro's law
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for Avogadro's number

Avogadro's constant

noun
1.
the number of atoms or molecules in a mole of a substance, equal to 6.022 52 × 1023 L, NA
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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Avogadro's number in Medicine

Avogadro's number n.
The number of molecules in a mole of a substance, approximately 6.0225 × 1023. Also called Avogadro's constant.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Avogadro's number in Science
Avogadro's number  
The number of atoms or molecules in a mole of a substance, approximately 6.0225 × 1023. It is based on the number of carbon atoms in 12 grams of carbon 12.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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