1. a medical procedure that removes waste products and excess fluid from the blood when the kidneys cannot function properly
Usage: medical
2. the separation of substances in solution by the difference in their ability to pass through a membrane
Usage: chemistry; technical

Examples

• The patient requires dialysis three times a week.
• Dialysis helps filter toxins from the blood.
• She has been on dialysis for two years while waiting for a kidney transplant.
• The dialysis machine cleaned his blood for four hours.
• Doctors recommended starting dialysis immediately.
• The chemistry lab used dialysis to purify the protein solution.
• Dialysis can separate molecules based on their size.