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

Examples of Avogadro's number in a Sentence

Recent Examples on the Web

There is of course Mole Day (10/23) to commemorate Avogadro's number, which is huge (on the order of 1023) and hugely important in physics. —Rhett Allain, WIRED, 14 Mar. 2024

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