What describes the following functional group? 
Definitions:
Plasma
The liquid component of blood, in which blood cells are suspended, containing proteins, electrolytes, and nutrients.
Serum
The clear, yellowish fluid that remains from blood plasma after clotting factors have been removed, used in diagnostic tests and treatments.
Lymphedema
Swelling typically in one of the arms or legs due to a blockage in the lymphatic system, preventing lymph fluid from draining well.
-edema
A suffix used in medical terminology to denote swelling or an accumulation of fluid in the tissues.
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