a bluish discoloration of the skin and mucous membranes; a sign that oxygen in the blood is dangerously diminished (as in carbon monoxide poisoning)
cyanosis详细解释
cy.a.no.sis n.（名词）A bluish discoloration of the skin and mucous membranes resulting from inadequate oxygenation of the blood.发绀，青紫：由于血液中的氧不充足而产生的皮肤和黏膜的带青色的变色 【引伸】 cy.anot.ic
