Akademik
anion exchanger
An
insoluble
solid
, usually a polystyrene or a
polysaccharide
, with
cation
groups (
e
.g., —NR
3
+
or —NR
2
H
+
), which can attract and hold anions that pass by in a moving
solution
in
exchange
for anions previously held.
Medical dictionary
.
2011
.