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Gram-variable

[gram-vair-ee-uh-buhl]

adjective

(often lowercase)
  1. of or relating to bacteria that stain irregularly with Gram's stain, being neither Gram-positive nor Gram-negative.



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Word History and Origins

Origin of Gram-variable1

First recorded in 1955–60; Gram's method

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Gram's solutiongran