hemocyanin

he.mo.cy.a.nin

n.（名词）
A bluish, copper-containing respiratory pigment similar to hemoglobin, present in the blood of certain mollusks and arthropods.
血蓝蛋白：一种浅蓝色的含铜的呼吸色素，类似血红蛋白，出现在某些节肢动物及软体动物的血液之中