Giemsa’s stain /gē·em″səz/ [Gustav Giemsa, German chemist, 1867–1948; Fr, teindre, to dye] , an azure dye used as a stain in the microscopic examination of the blood for certain protozoan parasites, viral inclusion bodies, and rickettsia and, more routinely, in the preparation of a smear for a differential white cell count. It is modified and combined with Wright’s stain to better detect organisms.
