rose bengal (redirected from rose bengal test)

rose ben·gal (rz bn-gôl, bng-, bngl, bng-)

n.

A bluish-red dye used as a stain for bacteria, as a stain in the diagnosis of keratitis sicca, and in tests of liver function.

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rose bengal

a fluorescein compound used as a pink dye, in a liver function test, and as a coloring agent in feed. It is also used in the eye to stain necrotic tissue and devitalized cells of the cornea in keratitoconjunctivitis sicca. Animals injected with the dye are temporarily photosensitive.

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rose bengal test

an oldfashioned field plate test for brucellosis in serum. The dye was used to mark the antigen and make its clumping visible. Suitable only as a screening test.