| 释义 |
gram-positive
gram-pos·i·tive or Gram-pos·i·tive (grăm′pŏz′ĭ-tĭv)adj. Of, relating to, or being a bacterium that retains the violet stain used in the Gram stain method.Gram-positive adj (Microbiology) designating bacteria that retain the violet stain in Gram's method Gram′-pos′itive (græm)
adj. (often l.c.) (of bacteria) retaining the violet dye when stained by Gram's method. [1905–10] gram-positive 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.Thesaurus| Adj. | 1. | Gram-positive - (of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's methodbacteria, 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 plantsconfirming, positive - indicating existence or presence of a suspected condition or pathogen; "a positive pregnancy test" |
Translationsgram-positive
gram-positive[′gram ¦päs·əd·iv] (microbiology) Of bacteria, holding the color of the primary stain when treated with Gram's stain. gram-positive
gram-positive [gram-poz´ĭ-tiv] retaining the stain or resisting decolorization by alcohol in Gram's method of staining; see stain" >Gram stain. This is a primary characteristic of bacteria whose cell wall is composed of peptidoglycan and teichoic acids.gram-pos·i·tive (gram-pos'i-tiv), In this expression gram begins with lowercase g but: Gram stain.Refers to the ability of a type of bacterium to resist decolorization with alcohol after being treated with crystal violet stain, which imparts a violet color to the bacteria when viewed by light microscopy. This reaction is usually an indication that the outer structure of the bacterium consists of a cytoplasmic membrane surrounded by a thick rigid bacterial cell wall composed of peptidoglycan. See: Gram stain. gram-positive or Gram-positive (grăm′pŏz′ĭ-tĭv)adj. Of, relating to, or being a bacterium that retains the violet stain used in the Gram stain method.gram-pos·i·tive (gram-poz'i-tiv) Refers to the ability of a bacterium to resist decolorization with alcohol after being treated with Gram crystal violet stain, imparting a violet color to the bacterium when viewed by light microscopy.
See: Gram stainGram-positive see GRAM'S STAIN.Gram-positiveReferring to a bacteria that takes on a purplish-black color when exposed to Gram's stain.Mentioned in: Aminoglycosidesgram-pos·i·tive (gram-poz'i-tiv) Refers to the ability of a type of bacterium to resist decolorization with alcohol after being treated with crystal violet stain, which imparts a violet color to the bacteria when viewed by light microscopy. Gram-positive
Related to Gram-positive: Gram-positive cocciWords related to Gram-positiveadj (of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's methodRelated Words- bacteria
- bacterium
- confirming
- positive
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