acid-fast bacteria

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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 — 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 — 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 staining — A staining procedure that differentiates between bacteria based on their ability to retain a dye when washed with an acid alcohol solution …   Dictionary of microbiology

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

• acid-fast bacillus — noun a class of rod shaped bacteria which, after being stained, retain the stain when treated with an acidic solution …   Wiktionary

• fast — 1. Durable; resistant to change; applied to stained microorganisms which cannot be decolorized. SEE ALSO: acid f.. 2. Not eating. [A.S. foest, firm, fixed] * * * ferment active solution therapy; Fitness, Arthritis and Seniors Trial; flowassisted …   Medical dictionary

• fast — I. adjective Etymology: Middle English, from Old English fæst; akin to Old High German festi firm, Old Norse fastr, Armenian hast Date: before 12th century 1. a. firmly fixed < roots fast in the ground > b. tightly shut < the drawers were fast > …   New Collegiate Dictionary