Gram stain
MICROBIOLOGICAL METHOD FOR IDENTIFICATION; METHOD OF STAINING USED TO DIFFERENTIATE BACTERIAL SPECIES INTO TWO LARGE GROUPS (GRAM-POSITIVE AND GRAM-NEGATIVE)
Gram staining; Gram's stain; Gram-variable; Gram status; Gram's method; Gram Stain; Gram-stain; Gram-staining; Gram-categorization; Gram-indeterminate; Gram indeterminate; Gram Staining; Gram indeterminant; Gram variable
In microbiology and bacteriology, Gram stain or Gram staining, also called Gram's method, is a method of staining used to classify bacterial species into two large groups: gram-positive bacteria and gram-negative bacteria. The name comes from the Danish bacteriologist Hans Christian Gram, who developed the technique in 1884.