| 释义 |
Gram's method
Gram's method n (Microbiology) 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 [C19: named after Hans Christian Joachim Gram (1853–1938), Danish physician]Gram's′ meth′od (græmz)
n. (sometimes l.c.) a method of characterizing bacteria that involves staining a slide of fixed specimens with gentian violet, washing with alcohol, and applying a counterstain. [after Hans C. J. Gram (1853–1938), Danish bacteriologist] Thesaurus| Noun | 1. | Gram's method - 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-negativeGram method, Gram stain, Gram's procedure, Gram's stainstaining - (histology) the use of a dye to color specimens for microscopic study |
TranslationsGram's Method
Gram’s Method a method for the differential staining of bacteria, proposed in 1884 by the Danish physician H. C. Gram. In Gram’s method the bacteria are stained with basic dyes, including crystal or methyl violet, which are then fixed in an iodine solution. After rinsing the dyed preparation in alcohol some types of bacteria remain thoroughly stained (the so-called gram-positive bacteria), and others (gram-negative) are decolorized. Such a division is of great importance in the classification of bacteria and in the microbiological diagnosis of infectious diseases. Gram's method
Synonyms for Gram's methodnoun a staining technique used to classify bacteriaSynonyms- Gram method
- Gram stain
- Gram's procedure
- Gram's stain
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