(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, Syn. Gram method, Gram's procedure, Gram stain, Gram's stain
[革兰氏 / 革蘭氏, Gé lán shìㄍㄜˊ ㄌㄢˊ ㄕˋ] Mr Gram; Dr. Hans Christian Jaochim Gram (1953-1938), Danish doctor and inventor of the Gram stain 革蘭氏染色法|革兰氏染色法, See Also: 革蘭氏染色法, 革兰氏染色法