Gram's method

American  

[gramz] / græmz /

noun

(sometimes lowercase)

1. 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.

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Gram's method British  

noun

1. 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 agent See also Gram-negative Gram-positive

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Etymology

Origin of Gram's method

Named after Hans C. J. Gram (1853–1938), Danish bacteriologist

Example Sentences

See Examples For:

Gram's method

This is the case in the methods for staining the tubercle bacillus and also in Gram's method, the essential point in which latter is the treatment with a solution of iodine before decolorizing.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" by Various

It stains with moderate rapidity with the ordinary anilin dyes, and is decolorized by Gram's method.

From Contagious Abortion of Cows by MacNeal, Ward J.

Stain carbolic methylene-blue, carbolic fuchsin, and Gram's method.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)

Stain: Gram's method coloured with aqueous fuchsine afterwards.

From The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente by Douglas, Loudon

From the resulting growths make cover-slip preparations and stain carbolic methylene-blue, Neisser's method, Gram's method.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)