[Avo.ga.dro's number] n [Count Amedeo Avogadro] (1924): the number 6.023E23indicating the number of atoms or molecules in a mole of any substance--called also Avogadro number
AVOGADRO'S NUMBER
Meaning of AVOGADRO'S NUMBER in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012