gram-positive(redirected from Gram postive)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to Gram postive: Gram negative
gram-pos·i·tiveor Gram-pos·i·tive (grăm′pŏz′ĭ-tĭv)
Of, relating to, or being a bacterium that retains the violet stain used in the Gram stain method.
(Microbiology) designating bacteria that retain the violet stain in Gram's method
adj. (often l.c.)
(of bacteria) retaining the violet dye when stained by Gram's method.
Relating to a group of bacteria that generally are sensitive to the destructive effects of antibiotics or the actions of the body's immune cells. Gram-positive bacteria have relatively thick cell walls and, when subjected to a specialized laboratory staining method, turn a dark-blue color. Compare gram-negative.
Switch to new thesaurus
|Adj.||1.||Gram-positive - (of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's method|
bacteria, bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
n. gram-positivo, retención del color o resistencia a la decoloración en la aplicación del método de Gram.