SINCE 1828
Avogadro's number
noun
Avo·ga·dro's number
| \ ˌa-və-ˈgä-(ˌ)drōz-
, ˌa-və-, -ˈga-
\
, ˌa-və-, -ˈga-
\
Definition of Avogadro's number
: the number 6.022 × 1023 indicating the number of atoms or molecules in a mole of any substance
— called also Avogadro number
Keep scrolling for more
Keep scrolling for more
More Definitions for Avogadro's number
Avogadro's number
noun
variants:
or Avogadro number \ -ˌgäd-(ˌ)rō-, -ˌgad-
\
\
Medical Definition of Avogadro's number
: the number 6.023 × 1023 indicating the number of atoms or molecules in a mole of any substance — compare avogadro's law
Comments on Avogadro's number
What made you want to look up Avogadro's number? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Summer 2019 Words of the Day Quiz
-
- Which is a synonym of desideratum?
Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Summer 2019 Words of the Day Quiz
The Word of the Day takes no vacation.
Take the quiz -
Obscure Shapes
Surprisingly specific words for shapes.
Take the quiz -
Name That Thing
Test your visual vocabulary with our 10-question challenge!
Take the quiz -
SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share Avogadro's number
Resources for Avogadro's number