Histohaematin
Pronunciation : His`to*h?m"a*tin
Part of Speech : n.
Etymology : [Gr. "isto`s tissue + E. h?matin.] (Physiol.)
Definition : Defn: One of a class of respiratory pigments, widely distributed in the animal kingdom, capable of ready oxidation and reduction.
Source : Webster's Unabridged Dictionary, 1913