1. comparative form of pure; more free from contamination, mixture, or unwanted elements
2. comparative form of pure; more morally good or innocent
3. comparative form of pure; more complete or absolute in quality

Examples

• The mountain spring water was purer than the tap water.
• She sought a purer form of the chemical for her experiment.
• His motives seemed purer than those of his competitors.
• The artist wanted to create purer colors for her painting.
• The air is much purer at this altitude.
• They found a purer strain of the bacteria in the lab.
• Her singing voice became purer with years of training.