Gram's method of distinguishing the two main groups of bacteria

(biochemistry) A histological stain used to identify chromosomal material or DNA in cell specimens, based on acid hydrolysis of DNA.

plural of Feulgen stain

(histology) A staining technique used primarily for differentiation of blood cells.

plural of Wright's stain

A stain used in microscopy for staining blood smears, generally to differentiate and identify leukocytes, malaria parasites, and Trypanosoma.

Glass that has been coloured, either by painting or by fusing pigments into its structure. / (architecture) The use of such glass to construct decorative windows, especially in churches.

(US, dentistry, dated) A brownish stain on the teeth, a symptom of fluorosis.

plural of Ziehl-Neelsen stain

A bacteriological stain used to identify acid-fast organisms, mainly mycobacteria.