gram-vari·able 'gram-'ver-ē-ə-bəl, -'var- adj staining irregularly or inconsistently by Gram's stain

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gram-var·i·a·ble (gram-varґe-ə-bəl) appearing to be a mixture of gram-positive and gram-negative organisms, said of gram-positive bacteria that lose the stain easily, so that some bacteria in a sample are decolorized and others retain the stain.

Medical dictionary. 2011.

Look at other dictionaries:

  • Gram-variable — /gram vair ee euh beuhl/, adj. (often l.c.) of or pertaining to bacteria that stain irregularly with Gram s stain, being neither Gram positive nor Gram negative. [1955 60; see GRAM S METHOD] * * * …   Universalium

  • gram-variable — ˈ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷ ̷ ̷ adjective Usage: sometimes capitalized G Etymology: Gram s (method) : staining irregularly or inconsistently by Gram s method * * * /gram vair ee euh beuhl/, adj. (often l.c.) of or pertaining to bacteria that stain… …   Useful english dictionary

  • gram-variable — adjective Date: 1956 staining irregularly or inconsistently by Gram s stain …   New Collegiate Dictionary

  • Gram staining — (or Gram s method) is an empirical method of differentiating bacterial species into two large groups (Gram positive and Gram negative) based on the chemical and physical properties of their cell walls.cite book | last = Bergey | first = David H.… …   Wikipedia

  • Gram-positive bacteria — Gram positive bacteria, stained purple, of both the bacillus (“rod shaped”) and coccus (spherical) forms.  A few Gram negative bacteria are also present, stained pink.  Numbered ticks are eleven (11) microns apart. Gram positive… …   Wikipedia

  • Gram method — Gram stain an empirical staining procedure in which microorganisms are stained with crystal violet, treated with 1:15 dilution of strong iodine solution, decolorized with ethanol or ethanol acetone, and counterstained with a contrasting dye,… …   Medical dictionary

  • variable — [ varjabl ] adj. et n. • fin XII e; lat. variabilis 1 ♦ Qui est susceptible de se modifier, de changer souvent au cours d une durée. ⇒ changeant, 1. incertain, instable. Temps variable. N. m. Météor. L aiguille du baromètre est au variable, sur… …   Encyclopédie Universelle

  • Variable — ► adjetivo 1 Que varía o puede variar. 2 Que es inestable o inconstante: ■ tiene una personalidad variable. ► sustantivo femenino 3 LÓGICA, MATEMÁTICAS Término indeterminado que, en una relación ouna función, puede ser reemplazado por diversos… …   Enciclopedia Universal

  • variable — adj m y f I. 1 Que cambia o puede cambiar fácilmente: La tierra es de fertilidad variable, células de forma variable, intensidad variable, dosis variables, rendimientos variables, costos variables 2 Palabra variable (Gram) Aquella cuya forma… …   Español en México

  • N-gram — An n gram is a sub sequence of n items from a given sequence. n grams are used in various areas of statistical natural language processing and genetic sequence analysis. The items in question can be phonemes, syllables, letters, words or base… …   Wikipedia

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