Useful english dictionary. 2012.
Gram-positive bacteria — Gram positive bacteria, stained purple, of both the bacillus (“rod shaped”) and coccus (spherical) forms. A few Gram negative bacteria are also present, stained pink. Numbered ticks are eleven (11) microns apart. Gram positive… … Wikipedia
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's method — n. Biol. a method of differentiating bacteria by staining with a dye, then attempting to remove the dye with a solvent, for purposes of identification. Phrases and idioms: Gram positive (or negative) (of bacteria) that do (or do not) retain the… … Useful english dictionary
Gram stain — noun 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… … Useful english dictionary
Gram's stain — noun 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… … Useful english dictionary
Gram method — noun 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… … Useful english dictionary
Gram staining — (or Gram s method) is an empirical method of differentiating bacterial species into two large groups (Gram positive and Gram negative) based on the chemical and physical properties of their cell walls.cite book | last = Bergey | first = David H.… … Wikipedia
Gram method — Gram stain an empirical staining procedure in which microorganisms are stained with crystal violet, treated with 1:15 dilution of strong iodine solution, decolorized with ethanol or ethanol acetone, and counterstained with a contrasting dye,… … Medical dictionary
gram-positive/negative — Gram s Method is a staining procedure that separates bacteria into those that stain (positive) and those that don t (negative). Gram positive bugs cause such lovely things as scarlet fever, tetanus, and anthrax, while some of the gram negs can … Herbal-medical glossary
-gram — I aff. a combining form meaning “something written, drawn, or plotted” diagram; epigram[/ex] “a written or drawn symbol or sequence of symbols” (ideogram; pentagram); “a message” (telegram); “an image or graphic record made by an instrument or as … From formal English to slang
