1. A mixture of two or more liquids that boils at a constant temperature and maintains a fixed composition of its components, behaving as a single substance during distillation.
Usage: chemistry; plural form of azeotrope; also called constant-boiling mixture

Examples

• Ethanol and water form one of the most well-known azeotropes in chemistry.
• Azeotropes cannot be separated into pure components by simple distillation.
• The composition of azeotropes remains constant during the boiling process.
• Many industrial processes must account for the presence of azeotropes when separating liquid mixtures.
• Different azeotropes have different boiling points depending on their component liquids.