acid-fast
adjective Date: 1903 not easily decolorized by acids

New Collegiate Dictionary. 2001.

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  • Acid-fast — Acid fastness is a physical property of some bacteria referring to their resistance to decolorization by acids during staining procedures.cite journal |author=Madison B |title=Application of stains in clinical microbiology |journal=Biotech… …   Wikipedia

  • acid-fast — [as′id fast΄] adj. that does not readily lose its color when exposed to acids after being stained: said esp. of certain bacteria and tissues …   English World dictionary

  • acid-fast — Denoting bacteria that are not decolorized by acid alcohol after having been stained with dyes such as basic fuchsin; e.g., the mycobacteria and nocardiae. * * * acid fast as əd .fast adj not easily decolorized by acids (as when stained) used esp …   Medical dictionary

  • acid-fast — adj. 1) describing bacteria that have been stained and continue to hold the stain after treatment with an acidic solution. For example, tuberculosis bacteria are acid fast when stained with a carbol fuchsin preparation. 2) describing a stain that …   The new mediacal dictionary

  • acid-fast — acid fastness, n. /as id fast , fahst /, adj. resistant to decolorizing by acidified alcohol after staining. [1900 05] * * * …   Universalium

  • acid-fast — adjective not easily decolorized by acid solutions; pertains to micro organisms (especially the tubercle bacillus that causes tuberculosis) • Similar to: ↑impervious, ↑imperviable * * * ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ adjective : not easily decolorized by acids… …   Useful english dictionary

  • acid-fast — /ˈæsəd fast/ (say asuhd fahst) adjective resistant to decolourisation by acid after staining …   Australian English dictionary

  • acid-fast — ac′id fast adj. lab resistant to decolorizing by acidified alcohol after staining • Etymology: 1900–05 ac′id fast ness, n …   From formal English to slang

  • acid fast — Refers to bacteria like the mycobacteria that cannot be easily decolorized with acid alcohol after being stained with dyes such as basic fuchsin …   Dictionary of microbiology

  • acid-fast — adjective (histology) of bacteria that retain their stain when treated with an acidic solution …   Wiktionary

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