English Explanatory Dictionary

gram-positive

English dictionary entry

Meanings

adj
  1. That is stained violet by Gram's method
adj
  1. That stains dark blue or violet after Gram staining, due to large quantities of peptidoglycan in the cell wall.

Word forms

gram-positive

Etymology

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

Related words

Gram staining Gram's method
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