a protein that is present in blood plasma and can join with free haemoglobin
One of the proteins in the plasma of our blood (the liquid in which the blood cellsfloat) is called haptoglobin.
b.
(as modifier)
haptoglobin genes
haptoglobin in American English
(ˈhæptəˌgloʊbɪn)
noun
a blood protein that binds with free hemoglobin in the bloodstream or at a wound when red blood cells decompose or are destroyed abnormally in the circulation