gram-positive

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gram-positive

Wikipedia

• Gram-positive (Note: The form with capital G is the only form given in the American Heritage Dictionary. "Gram" is actually a proper name.)

From Gram (“a surname”) + positive, after Danish bacteriologist Hans Christian Gram, who invented the Gram staining method.

gram-positive (not comparable)

1. (medicine, bacteriology, of a bacterium) That is stained violet by Gram's method

• gram-negative

• Gram staining
• Gram's method

gram-positive

1. feminine plural of gram-positivo