Source : Webster's Revised Unabridged Dictionary (1913)

OxYhaemacyanin \Ox`Y*h[ae]m`a*cy"a*nin\, Oxyhaemocyanin
\Ox`y*h[ae]m`o*cy"a*nin\, n. [Oxy
   (a) + h[ae]macyanin, h[ae]mocyanin.] (Physiol. Chem.) See
       {H[ae]macyanin}.