gram-negative

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Definitions from WordNet

Adjective gram-negative has 1 sense

gram-negative - (of bacteria) being or relating to a bacterium that does not retain the violet stain used in Gram's method
Antonym: gram-positive

Definitions from the Web

Gram-negative

Part of Speech: Adjective

Definition: Referring to bacteria that do not retain the crystal violet stain in the Gram staining method, indicating the absence of a thick peptidoglycan layer in their cell walls.

Example Sentence: The gram-negative bacteria, commonly found in the human intestines, can cause severe gastrointestinal infections.

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