dialysis machine
nounUK /daɪˈæləsɪs məˈʃiːn/
US /daɪˈæləsɪs məˈʃiːn/
A machine that cleans a person's blood when their kidneys cannot do it.
My grandpa sits by the dialysis machine for a few hours each week.
OTHER MEANINGS
2. A device used in a laboratory to separate small molecules from larger ones in a solution.
The lab technician loaded the sample into the dialysis machine to remove the salts.
3. A piece of equipment in a water-treatment plant that removes dissolved impurities.
The plant's dialysis machine filters minerals out of the water supply.
4. A metaphor for something that repeatedly removes problems or waste from a system.
The new review process acts like a dialysis machine for our bug reports.