1. the liquid that passes through an ultrafilter, containing only very small molecules and ions
Usage: medical; scientific

1. to filter through an ultrafilter to separate very small particles from larger ones
Usage: medical; scientific

Examples

• The ultrafiltrate contained only water and small dissolved substances.
• Kidney dialysis produces an ultrafiltrate by removing waste products from blood.
• The laboratory will ultrafiltrate the sample to isolate the proteins.
• Scientists ultrafiltrate the solution to study molecular components.
• The ultrafiltrate was analyzed for mineral content.
• Researchers ultrafiltrate plasma to examine small molecules.
• The clear ultrafiltrate showed no signs of contamination.