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Avogadro's number
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noun Chemistry.
the constant, 6.022 × 1023, representing the number of atoms, molecules, or ions in one mole of a substance. Symbol: NCompare gram-atom, gram molecule.
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Also called Avogadro constant.
Compare Loschmidt's number.
Origin of Avogadro's number
First recorded in 1925–30; see origin at Avogadro's law
Words nearby Avogadro's number
avocet, avodire, Avogadro, Avogadro's constant, Avogadro's law, Avogadro's number, avoid, avoidance, avoidance play, avoidant, avoid like the plague
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use Avogadro's number in a sentence
Scientific definitions for Avogadro's number
Avogadro's number
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
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