acid-fast

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Related to Acid fast: Acid fast bacilli

ac·id-fast

(ăs′ĭd-făst′)
adj.
Not decolorized by acid after staining, as bacteria that retain dye after an acid rinse.

ac′id-fast′ness n.

acid-fast

adj
(Microbiology) (of bacteria and tissues) resistant to decolorization by mineral acids after staining

ac′id-fast`



adj.
resistant to decolorizing by acidified alcohol after staining.
[1900–05]
ac′id-fast`ness, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.acid-fast - not easily decolorized by acid solutions; pertains to micro-organisms (especially the tubercle bacillus that causes tuberculosis)
imperviable, impervious - not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument"
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References in periodicals archive ?
Grocott stains were negative, but Ziehl-Neelsen stains showed a large number of acid fast bacilli (Fig.
Cryptosporidium oocysts were examined after formalin-ether sedimentation and modified acid fast staining.
The cells are acid fast and do not form cords or branches.
The guide contains a dye that fluoresces under the same light wavelengths that excite Auramine stains, which are used to stain tuberculosis Acid Fast Bacilli (AFB) for review with fluorescence microscopes.
Additional microbiological workup was ordered on wound specimens collected using sterile swabs and anaerobic culturettes for both aerobic and anaerobic cultures, along with acid fast stains and cultures.