Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Avogadro's number

play
noun Avo·ga·dro's number \ˌa-və-ˈgä-(ˌ)drōz-, ˌa-və-, -ˈga-\

Definition of Avogadro's number

  1. :  the number 6.022 × 1023 indicating the number of atoms or molecules in a mole of any substance —called also Avogadro number



Origin of avogadro's number

Count Amedeo Avogadro


First Known Use: 1924


Medical Dictionary

Avogadro's number

noun Avo·ga·dro's number

Medical Definition of Avogadro's number

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



Variants of avogadro's number

or Avogadro number \-ˌgäd-(ˌ)rō-, -ˌgad-\play

Learn More about avogadro's number

  1. Medical Dictionary: Definition of "Avogadro's number"


Seen and Heard

What made you want to look up Avogadro's number? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to dishevel or rumple

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

disapprove soothe perplex reduce
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ