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acid-fast
(redirected from acid-fastness)

   Also found in: Medical, Wikipedia 0.01 sec.
acĀ·id-fast (sd-fst)
adj.
Not decolorized by acid after staining, as bacteria that retain dye after an acid rinse.

acid-fastness n.

acid-fast
adj
(Life Sciences & Allied Applications / Microbiology) (of bacteria and tissues) resistant to decolorization by mineral acids after staining
ThesaurusLegend:  Synonyms Related Words Antonyms
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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Partial acid-fastness is a unique characteristic of Nocardia that is not exhibited by other actinomycetes.
 
 
 
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