1. Plural of mol; units of amount of substance in chemistry, equal to Avogadro's number of particles.
Usage: technical; chemistry

Examples

• The reaction required 2 mols of sodium chloride.
• We calculated that the sample contained 0.5 mols of hydrogen gas.
• In chemistry class, students learned to convert grams to mols using molar mass.
• The experiment called for 3 mols of sulfuric acid.
• She measured out exactly 1.5 mols of the compound for the lab.