Avogadro's number

noun

Avo·​ga·​dro's number ˌa-və-ˈgä-(ˌ)drōz- 

ˌä-və-,

-ˈga- 

: the number 6.022 × 10²³ indicating the number of atoms or molecules in a mole of any substance

called also Avogadro number

Word History

Etymology

Count Amedeo Avogadro

First Known Use

1904, in the meaning defined above

Medical Definition

Avogadro's number

noun

variants or Avogadro number

-ˌgäd-(ˌ)rō-, -ˌgad- 

: the number 6.023 × 10²³ indicating the number of atoms or molecules in a mole of any substance compare avogadro's law