Haemocyanin n. : Same as Haemacyanin.

Example:
Whats the difference between Haemocyanin and haemolymph?

Taxonomy
oxygen, Keyhole limpet hemocyanin, subunits, blood, hexamers, O-O, binding, bind, O2, species, oxygenated, cooperative binding, Glycosylated hemoglobin, free encyclopedia, oxygen transportation, blood cells, free-floating, active site.

Defination from the web:
Haemocyanin) Jump to: navigation, search ... Hemocyanins (also spelled haemocyanins) are respiratory proteins in the form of metalloproteins containing two copper atoms that reversibly bind a single oxygen molecule (O2) ...