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hans christian joachim gram

hans christian joachim gram in Science
Gram
  (gräm, grām)   
Danish bacteriologist who in 1884 developed a method of staining bacteria, called Gram's stain or Gram's dye, that is used to identify and classify bacteria, often from samples of infected body fluids. The classification, called gram-negative or gram-positive, can be useful in the initial selection of antibiotics to treat the infection.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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