picrocarmine stain


Also found in: Dictionary.

pic·ro·car·mine stain

a red crystalline powder derived from a solution of carmine, ammonia, and picric acid, which is evaporated, leaving the powder (soluble in water); it produces excellent staining of keratohyaline granules.

pic·ro·car·mine stain

, picrocarmine (pik'rō-kahr'min stān)
A red crystalline powder derived from a solution of carmine, ammonia, and picric acid that is evaporated, leaving the powder (soluble in water); it produces excellent staining of keratohyaline granules.