Science / Chemistry / Dialysis: Dialysis is the separation of components in a mixture by passing them across a semipermeable membrane.
Business / Accounting / Medicare: A federal government program of transfer payments for certain health care expenses for citizens 65 or older. The Social Security Administration manages the program. MORE
Science / Chemistry / Semipermeable Membrane: A membrane that allows some but not all of the components in a mixture to pass through it. Semipermeable membranes are used in dialysis. MORE