gram staining
11Gram's method — noun a staining technique, using a sequence of crystal violet, iodine and safranine, used to differentiate bacteria into two large groups of species Syn: Gram staining …
12Gram's stain — or Gram stain gram n 1) a method for the differential staining of bacteria that involves fixing the bacterial cells to a slide and staining usu. with the basic dye crystal violet, treating with an iodine solution to fix the dye, washing with… …
13gram stain — Staining technique for the initial identification of bacteria, devised in 1884 by the Danish physician Hans Christian Gram (1853–1938). The stain reveals basic differences in the biochemical and structural properties of a living cell. A slide… …
14Gram's solution — gramz n a watery solution of iodine and the iodide of potassium used in staining bacteria by Gram s stain Gram gräm Hans Christian Joachim (1853 1938) Danish physician. Gram introduced his method for the differential staining of bacteria in 1884 …
15Gram 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,… …
16gram-variable — gram vari·able gram ver ē ə bəl, var adj staining irregularly or inconsistently by Gram s stain * * * gram var·i·a·ble (gram varґe ə bəl) appearing to be a mixture of gram positive and gram negative organisms, said of gram positive… …
17Gram'smethod — Gram s method (grămz) n. A staining technique used to classify bacteria in which a bacterial specimen is first stained with crystal violet, then treated with an iodine solution, decolorized with alcohol, and counterstained with safranine. Gram… …
18Gram method stain solution — (gram) [Hans Christian Joachim Gram, Danish physician, 1853–1938] see Stains and Staining Methods, under stain, and see gram negative and gram positive …
19Gram's method — [gramz] n. [after Hans C. J. Gram (1853 1938), Dan physician] a method of staining bacteria for the purpose of classification, involving treatment with crystal violet, an iodine solution, and alcohol: the violet stain is retained by Gram positive …
20gram complex — ˈgram noun Usage: usually capitalized G Etymology: after Hans Christian Joachim Gram died 1938 Dan. physician : the part of a gram positive bacterial cell responsible for the characteristic staining by Gram s method and usually considered to be a …
