HAEMOCYANIN
HAEMOCYANIN Hæm `o *cy "a *nin, n.
haemocyanin
haemocyanin |ˌhiːmə (ʊ )ˈsʌɪənɪn |(US hemocyanin ) ▶noun [ mass noun ] Biochemistry a protein containing copper, responsible for transporting oxygen in the blood plasma of arthropods and molluscs. ORIGIN mid 19th cent.: from haemo- ‘of blood ’ + cyan + -in 1 .