gram-negative

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Related to Gram-negative bacterium: Gram positive bacterium

gram-neg·a·tive

or Gram-neg·a·tive (grăm′nĕg′ə-tĭv)
adj.
Of, relating to, or being a bacterium that does not retain the violet stain used in the Gram stain method.

Gram-negative

adj
(Microbiology) designating bacteria that fail to retain the violet stain in Gram's method

Gram′-neg′ative

(græm)

adj. (often l.c.)
(of bacteria) not retaining the violet dye when stained by Gram's method.
[1905–10]

gram-negative

Relating to a group of bacteria that generally are resistant to the effects of antibiotics or the actions of the body's immune cells. Gram-negative bacteria have relatively thin cell walls and, when subjected to a specialized laboratory staining method, do not change color. Compare gram-positive.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.Gram-negative - (of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method
bacteria, bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
disconfirming, negative - not indicating the presence of microorganisms or disease or a specific condition; "the HIV test was negative"
Translations

gram-neg·a·tive

n. gram-negativo, resultado de la aplicacion del método de Gram de decoloración de una bacteria o tejido por medio de alcohol.

Gram-negative

adj Gram negativo
References in periodicals archive ?
[USA], Feb 25 (ANI): Researchers have now discovered the unique way in which a type of Gram-negative bacterium delivers the toxins that make people sick.
In the same study, the rate of gram-negative bacteria was 5.9% and the most common gram-negative bacterium was Escherichia coli.
Results showed that in optimized statistical conditions, cotton fabric was produced with shrinkage of over 99% of the gram-negative bacterium of Esherichia coli and reduction of more than 97% of gram-positive bacterium of staphylococcus aureus.

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