noun (sometimes lowercase)
- a method of staining and distinguishing bacteria, in which a fixed bacterial smear is stained with crystal violet, treated with Gram’s solution, decolorized with alcohol, counterstained with safranine, and washed with water.
noun
- bacteriol a staining technique used to classify bacteria, based on their ability to retain or lose a violet colour, produced by crystal violet and iodine, after treatment with a decolorizing agentSee also Gram-negative, Gram-positive