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Hans christian joachim 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.


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    [hans] /hæns/ noun 1. . /hæns/ noun 1. a medieval guild of merchants 2. a fee paid by the new members of a medieval trading guild 3.

  • Hanseatic

    [han-see-at-ik] /ˌhæn siˈæt ɪk/ adjective 1. of or relating to the Hanseatic League or to any of the towns belonging to it. noun 2. any of the towns belonging to the Hanseatic League. /ˌhænsɪˈætɪk/ adjective 1. of or relating to the Hanseatic League noun 2. a member of the Hanseatic League 1610s, from Hanseatic League, […]

  • Hanseatic-league

    noun 1. a medieval league of towns of northern Germany and adjacent countries for the promotion and protection of commerce. noun 1. a commercial association of towns in N Germany formed in the mid-14th century to protect and control trade. It was at its most powerful in the 15th century Also called Hansa, Hanse

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