cresyl blue
(redirected from cresyl blue brilliant)cres·yl blue
, cresyl blue brilliant (kres'il blū brĭl-yent), [C.I. 51010]A basic oxazin dye used for staining the reticulum in young erythrocytes (reticulocytes); also used in vital staining and as a selective stain for gastric surface epithelial mucin and other acid mucopolysaccharides.