1. a unit of measurement equal to one millionth of a mole, used in chemistry to measure very small amounts of a substance
Usage: scientific; chemistry

Examples

• The concentration of the drug in blood plasma was measured in micromoles per liter.
• Scientists detected 50 micromoles of the compound in the sample.
• The enzyme activity was expressed as micromoles of product formed per minute.
• Blood glucose levels can be reported in micromoles per deciliter.
• The researcher added 10 micromoles of the reagent to the solution.
• Vitamin concentrations are often measured in micromoles.