adjective
See Gram-negative in American Heritage Dictionary 4
or Gram-neg·a·tive (grămˈnĕgˈə-tĭv)
Learn more about Gram-negative
» gram-negative science
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» aerobe
» anaerobe
» bacillus
» bacterium
» diplococcus
» endotoxin
» Gram's method
» infection
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» polymyxin
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