English Reference

Word

MOL

Phoneticsmol

/ˈmɔɫ/

Definition

n. a standard unit in science used to measure the amount of a substance. It helps scientists count very tiny things like atoms or molecules by grouping them into a specific, large number.

n. the SI base unit for the amount of a substance, defined as exactly 6.02214076 × 10²³ elementary entities. Used to express the magnitude of chemical reactions and the proportions of elements in a compound.

Usage

Often followed by 'of' and the name of a specific element or molecule.

Pitfall

three mol of water

three moles of water

While 'mol' is the official scientific symbol, the full word 'moles' should be used in standard English sentences.

Domains

ChemistryPhysics

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

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English Reference