Compare Loschmidt's number.
Origin of Avogadro's number
First recorded in 1925–30; see origin at Avogadro's law
Also called Avogadro constant.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The number of molecules in a mole of a substance, approximately 6.0225 X 1023.Avogadro's constant
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
The number of atoms or molecules in a mole of a substance, approximately 6.0225 X 1023. It is based on the number of carbon atoms in 12 grams of carbon 12.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.