Gram's method

noun \ˈgramz-, -aa(ə)mz-\
variants: or

Gram method

Definition of Gram's method

  1. :  a method for the differential staining of bacteria by which they are treated with Gram's solution after being stained with gentian violet and are then treated with alcohol and washed in water with the result that certain species retain the dye while others are decolorized — see gram-negative, gram-positive

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Origin and Etymology of gram's method

after Hans C. J. Gram


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