ac·id-fast ( s  d-fst )adj. Not decolorized by acid after staining, as bacteria that retain dye after an acid rinse. ac id-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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