acid-fast

listen to the pronunciation of acid-fast
English - English
of bacteria that retain their stain when treated with an acidic solution
not easily decolorized by acid solutions; pertains to micro-organisms (especially the tubercle bacillus that causes tuberculosis)
acid-fast bacillus
a class of rod-shaped bacteria which, after being stained, retain the stain when treated with an acidic solution
acid-fast
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