counterstain

listen to the pronunciation of counterstain
İngilizce - İngilizce
A stain contrasting with the principal stain in color, thus making the stained structure easier to see
To stain with a counterstain
a stain of contrasting color that is used when the principal stain does not show the structure clearly
{i} second stain applied to a previous stain (on a microscopic specimen)
counterstain