"Special stains" refer to a technique used in laboratory testing to color specific parts or components of a sample, allowing scientists to see them more easily under a microscope. Full definition
One of the best ways to deal with stains is to treat it with special Stain Soap. (diaperjunction.com)
Determined the right chemical solution to remove dirt and stains from carpets and used special stain removers according to the type of carpet fiber. (jobhero.com)
You can now also easily stain myelin in enzyme IHC, using the Luxol fast blue special stain kit. (abcam.com)