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Gram's method
[ gramz ]
/ grĂŠmz /
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noun (sometimes lowercase)
a method of staining and distinguishing bacteria, in which a fixed bacterial smear is stained with crystal violet, treated with Gram's solution, decolorized with alcohol, counterstained with safranine, and washed with water.
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Compare Gram-negative, Gram-positive.
Origin of Gram's method
Named after Hans C. J. Gram (1853â1938), Danish bacteriologist
Words nearby Gram's method
Gram-positive, gramps, grampus, Gram-Schmidt orthogonalization, Gramsci, Gram's method, Gram's solution, Gram-variable, gran, grana, Granada
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use Gram's method in a sentence
British Dictionary definitions for Gram's method
Gram's method
noun
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 agentSee also Gram-negative, Gram-positive
Word Origin for Gram's method
C19: named after Hans Christian Joachim Gram (1853â1938), Danish physician
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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