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Avogadro's number: Meaning and Definition of

A'voga'dro's num'ber

Pronunciation: [key]
? Chem. Chem.
  1. the constant, 6.02 10, representing the number of atoms in a gram atom or the number of molecules in a gram molecule. Symbol: N Also calledCf. Loschmidt's number.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.