SINCE 1828
mol
nounless common spelling of mole entry 5
: the base unit of amount of pure substance in the International System of Units that contains the same number of elementary entities as there are atoms in exactly 12 grams of the isotope carbon 12
mol
abbreviationDefinition of mol (Entry 2 of 2)
molecular; molecule
Keep scrolling for more
Comments on mol
What made you want to look up mol? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Original Meanings Quiz
-
- Which of the following is the earliest known sense of the word awe?
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 unabridgedWords at Play
Ask the Editors
Word Games
-
Original Meanings Quiz
A quiz for the pedantic and those annoyed by them!
Take the quiz -
A Green Quiz
How many questions can you answer about the word "green"?
Take the quiz -
Name That Thing
Test your visual vocabulary with our 10-question challenge!
Take the quiz -
Word Winder's CrossWinder
Play the game
Share mol
Resources for mol