fluorescent stain

fluor·es·cent stain

a stain or staining procedure using a fluorescent dye or substance that will combine selectively with certain tissue components and that will then fluoresce upon irradiation with ultraviolet or violet-blue light.

fluor·es·cent stain

(flōr-es'ĕnt stān) A staining procedure that uses a fluorescent dye or substance that combines selectively with certain tissue components and then fluoresces on irradiation with ultraviolet or violet-blue light.