oxyhaemacyanin

from The Collaborative International Dictionary of English v.0.48

Oxyhaemacyanin \Ox`y*haem`a*cy"a*nin\, Oxyhaemocyanin
\Ox`y*haem`o*cy"a*nin\, n. [Oxy
   (a) + haemacyanin, haemocyanin.] (Physiol. Chem.) See
       {Haemacyanin}.
       [1913 Webster] Oxyhaemoglobin