Gram method, n.
a staining technique used to classify bacteria; bacteria are stained with gentian violet and then treated with Gram's solution; after being decolorized with alcohol and treated with safranine and washed in water, those that retain the gentian violet are Gram-positive and those that do not retain it are Gram-negative
<noun.act>
Gram method Gram stain Gram's method Gram's procedure Gram's stain
semantic pointers
hypernym