Gram-negative

Gram-negative
Gram′-neg′ative
[[t]græm[/t]] adj. (often l.c.)
mcr lab (of bacteria) not retaining the violet dye when stained by Gram's method
Etymology: 1905–10

From formal English to slang. 2014.

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  • Gram-negative — bacteria lose the crystal violet stain (and take the color of the red counterstain) in Gram s method of staining. This is characteristic of bacteria that have a cell wall composed of a thin layer of a particular substance (called peptidoglycan).… …   Medical dictionary

  • Gram-negative — [gram′neg′ə tiv] adj. [also g ] designating bacteria that do not retain the color stain: see GRAM S METHOD …   English World dictionary

  • Gram-negative — Bacillus cereus, lichtmikroskopisch, Gram Färbung: grampositiv Pseudomonas aeruginosa, lichtmikroskopisch, Gram Fä …   Deutsch Wikipedia

  • Gram-negative bacteria — Gram negative bacteria. См. грам отрицательные бактерии. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Gram-négative — Gram négatif Les bactéries à Gram négatif sont mises en évidence par une technique de coloration appelée coloration de Gram. Les bactéries à Gram négatif apparaissent alors roses au microscope. La technique de coloration repose sur les… …   Wikipédia en Français

  • Gram-negative — /gram neg euh tiv/, adj. (often l.c.) (of bacteria) not retaining the violet dye when stained by Gram s method. [1905 10; see GRAM S METHOD] * * * …   Universalium

  • Gram-negative bacteria — Microscopic image of Gram negative Pseudomonas aeruginosa bacteria (pink red rods). Gram negative bacteria are bacteria that do not retain crystal violet dye in the Gram staining protocol.[1] In a Gram …   Wikipedia

  • gram-negative bacterium — see gram negative, under G …   Medical dictionary

  • Gram-negative — adjective (of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram s method • Similar to: ↑negative, ↑disconfirming • Topics: ↑bacteria, ↑bacterium …   Useful english dictionary

  • gram-negative — adjective Date: 1907 not holding the purple dye when stained by Gram s stain used chiefly of bacteria …   New Collegiate Dictionary

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